| Description | Date | Identifier | |
| Faults with starters, main switch coils, and court switches on various chassis. | 21th Nov 1930 | Box 47 \ 2 Scan402 | |
| Technical report detailing issues and fixes for radiator leaks, tyre wear, telegauge failures, clutch seizure, and springing. | 21th Nov 1930 | Box 47 \ 2 Scan403 | |
| Vehicle weight specifications, valve spring failures, and a complaint resolution for a Phantom II. | 21th Nov 1930 | Box 47 \ 2 Scan404 | |
| Issues with bodywork, propeller shaft leaks, and unsatisfactory repair work at Cricklewood. | 21th Nov 1930 | Box 47 \ 2 Scan405 | |
| Cost and improvement of special springs for Mr. Bernard Hopps' chassis GLR-50. | 21th Nov 1930 | Box 47 \ 2 Scan406 | |
| Cost estimate for special springs for the 20 HP cars. | 24th Nov 1930 | Box 47 \ 2 Scan407 | |
| Various component failures including water pumps, brakes, coils, and magneto wires. | 24th Nov 1930 | Box 47 \ 2 Scan408 | |
| 20 HP starter motor failures and issues with propeller shaft and sliding joints. | 24th Nov 1930 | Box 47 \ 2 Scan409 | |
| Progress report on issues with lubricators, shock absorbers, exhausts, speedometers, cylinder leaks, and springing. | 24th Nov 1930 | Box 47 \ 2 Scan410 | |
| Clutch seizure issue for Phantom II & 25 HP models, detailing revised clearance specifications. | 24th Nov 1930 | Box 47 \ 2 Scan411 | |
| Diagnosis and proposed solution for a persistent high-speed steering wobble on a customer's car. | 26th Nov 1930 | Box 47 \ 2 Scan412 | |
| Requesting a complete report on the progress of resolving customer complaints. | 26th Nov 1930 | Box 47 \ 2 Scan413 | |
| Investigation and resolution of a car's high-speed wobble. | 27th Nov 1930 | Box 47 \ 2 Scan414 | |
| The urgent replacement of a steering column for car 137-XJ. | 28th Nov 1930 | Box 47 \ 2 Scan415 | |
| Series of tests conducted to diagnose and resolve a high-speed wobble complaint on car 137 X.J. | 28th Nov 1930 | Box 47 \ 2 Scan416 | |
| Test report on steering complaints and subsequent alterations for car 91 G.Y. | 2nd Dec 1930 | Box 47 \ 2 Scan417 | |
| Replacement of a silver-plated steering column for chassis 180-GY for Capt. The Honorable Charles Winn. | 2nd Dec 1930 | Box 47 \ 2 Scan418 | |
| Report from W.R. Putterill regarding a road test of car 137XJ, noting a high-speed joggle after new front road springs were fitted. | 2nd Dec 1930 | Box 47 \ 2 Scan419 | |
| Checklist of vehicle suspension, steering, and tyre adjustments and specifications. | 2nd Dec 1930 | Box 47 \ 2 Scan420 | |
| Car modifications regarding the cross tube, spring compression, steering column plating, and luggage weight. | 2nd Dec 1930 | Box 47 \ 2 Scan421 | |
| Postscript note about depot closing times and weekend working arrangements. | 1st Dec 1930 | Box 47 \ 2 Scan422 | |
| Road test for car 137 XJ, detailing adjustments to dampers and pivots. | 1st Dec 1930 | Box 47 \ 2 Scan423 | |
| The fitting of a new steering column to car 137 XJ and the results of reduced front dampers. | 2nd Dec 1930 | Box 47 \ 2 Scan424 | |
| Progress report on front damper replacement and adjustments to front pivot clearances. | 30th Nov 1930 | Box 47 \ 2 Scan425 | |
| Adjustments and checks on front road springs, steering, and tyres. | 2nd Dec 1930 | Box 47 \ 2 Scan426 | |
| Test report on car steering and damping performance. | 2nd Dec 1930 | Box 47 \ 2 Scan427 | |
| Steering issues with sales car 91 G.Y., including load measurements and test plans. | 2nd Dec 1930 | Box 47 \ 2 Scan428 | |
| On headed paper regarding travel plans to Derby, contingent on the performance of two cars. | 4th Dec 1930 | Box 47 \ 2 Scan429 | |
| The investigation and resolution of a steering complaint for chassis number 137-XJ. | 4th Dec 1930 | Box 47 \ 2 Scan430 | |
| Adjustments to the rear shock absorbers and the resulting effect on steering. | 4th Dec 1930 | Box 47 \ 2 Scan431 | |
| List of customer complaints with the individuals allotted to investigate each issue. | 5th Dec 1930 | Box 47 \ 2 Scan432 | |
| List of technical issues and the individuals or departments allotted to handle them. | 8th Dec 1930 | Box 47 \ 2 Scan433 | |
| Monthly report on customer complaints regarding brake squeaks, shock absorbers, and springing. | 8th Dec 1930 | Box 47 \ 2 Scan434 | |
| Technical issues and proposed solutions for various vehicle components, including couplings, steering, clutches, exhausts and drives. | 8th Dec 1930 | Box 47 \ 2 Scan435 | |
| Technical issues and improvements for various vehicle components, including overheating, ignition coils, and propeller shaft joints. | 8th Dec 1930 | Box 47 \ 2 Scan436 | |
| Failures and remedies for starter motor drives, petrol tanks, and radiators. | 8th Dec 1930 | Box 47 \ 2 Scan437 | |
| Status report on various vehicle component issues, including pulleys, pumps, engine, and suspension. | 8th Dec 1930 | Box 47 \ 2 Scan438 | |
| Progress report on various vehicle component issues and modifications. | 8th Dec 1930 | Box 47 \ 2 Scan439 | |
| Complaints regarding H.T. wire tubes, magneto H.T. wires, water pump drives, and engine water leaks. | 8th Dec 1930 | Box 47 \ 2 Scan440 | |
| Cover letter for a quarterly summary of work done to overcome complaints on cars. | 8th Dec 1930 | Box 47 \ 2 Scan441 | |
| Query for instructions regarding the removed steering column and front springs for chassis 137-XJ. | 9th Dec 1930 | Box 47 \ 2 Scan442 | |
| Spring weight calculations for a Phantom II, chassis 7-GN, for the Marquis de Viana. | 12th Dec 1930 | Box 47 \ 2 Scan443 | |
| Requesting a copy of the original list of customer complaints for better understanding. | 11th Dec 1930 | Box 47 \ 2 Scan444 | |
| Requesting a list of customer complaints be provided to the design department to help eliminate troubles. | 15th Dec 1930 | Box 47 \ 2 Scan445 | |
| Quarterly complaints and tests of fabric couplings, detailing failure causes and replacement recommendations. | 19th Dec 1930 | Box 47 \ 2 Scan446 | |
| Test report comparing the durability of different fabric couplings on non-spigoted and spigoted spiders. | 19th Dec 1930 | Box 47 \ 2 Scan447 | |
| Test report on different types of fabric couplings, detailing their performance under specific conditions. | 19th Dec 1930 | Box 47 \ 2 Scan448 | |
| Diagram illustrating the causes of failure in fabric coupling tests. | 19th Dec 1930 | Box 47 \ 2 Scan449 | |
| Manufacturing process and quality control for rivetted fabric couplings. | 8th Jan 1931 | Box 47 \ 3 Scan001 | |
| Quarterly complaints report investigating rear axle pinion thrust bearing failures. | 16th Jan 1931 | Box 47 \ 3 Scan002 | |
| Bearing failures due to shell finish issues, proposing a change to the Shatz type bearing for 'S' and 'T' series cars. | 16th Jan 1930 | Box 47 \ 3 Scan003 | |
| Investigations into battery box suspension, gearbox oil leaks, oil pumps, and thrust races. | 16th Jan 1931 | Box 47 \ 3 Scan004 | |
| High failure rate and cost of the 20/25HP rear axle thrust bearing, proposing to introduce a new, better bearing earlier than planned. | 13th Dec 1930 | Box 47 \ 3 Scan005 | |
| Monthly report on customer complaints detailing issues with brake squeaks, shock absorbers, springing, and fabric couplings. | 16th Jan 1931 | Box 47 \ 3 Scan006 | |
| Progress report on design modifications and issue resolutions for various vehicle components. | 16th Jan 1931 | Box 47 \ 3 Scan007 | |
| Progress report on issues and tests related to various vehicle components. | 16th Jan 1931 | Box 47 \ 3 Scan008 | |
| Progress report on various technical items including noisy oil pumps, engine overoiling, and dynamo issues. | 16th Jan 1931 | Box 47 \ 3 Scan009 | |
| Issues and updates for various components including valve springs, speedometers, wires, and drives. | 16th Jan 1931 | Box 47 \ 3 Scan010 | |
| Status update on engine water leaks from cylinders, noting no new reports have been received. | 16th Jan 1931 | Box 47 \ 3 Scan011 | |
| Quarterly complaints for December, with statistics on various model failures. | 23th Jan 1931 | Box 47 \ 3 Scan012 | |
| Correction to the December 1930 Quarterly Complaints report, specifically for steering complaints. | 24th Jan 1931 | Box 47 \ 3 Scan013 | |
| Investigations into the causes and temporary cures for brake squeaks. | 24th Jan 1931 | Box 47 \ 3 Scan014 | |
| Investigation into the causes and remedies for brake squeaks, particularly concerning bedding of the brake liners. | 24th Jan 1931 | Box 47 \ 3 Scan015 | |
| Investigation into brake squeak complaints, comparing liner materials and damping devices on Phantom I and II cars. | 24th Jan 1931 | Box 47 \ 3 Scan016 | |
| Use of Ferobestos brake material on the 20/25 HP model and comparing it to Ferodo. | 27th Jan 1931 | Box 47 \ 3 Scan017 | |
| Cover note for a quarterly complaint report on brake squeaks from December 1930. | 27th Jan 1931 | Box 47 \ 3 Scan018 | |
| Quarterly complaint report from December 1930 detailing issues and remedies for brake squeak. | 31th Dec 1930 | Box 47 \ 3 Scan019 | |
| Monthly customer complaints report on booming, vibrations, brake squeaks, and shock dampers for 25HP and Phantom models. | 18th Feb 1931 | Box 47 \ 3 Scan020 | |
| Technical issues and improvements concerning springing, fabric couplings, steering, and clutches. | 18th Feb 1931 | Box 47 \ 3 Scan021 | |
| Ongoing vehicle issues such as exhaust troubles, slipper drives, and engine overheating, along with proposed solutions. | 18th Feb 1931 | Box 47 \ 3 Scan022 | |
| Component issues, tests, and proposed improvements for various chassis parts. | 18th Feb 1931 | Box 47 \ 3 Scan023 | |
| Complaints and resolutions for various vehicle components, including petrol tanks, radiators, oil pumps, engines, and dynamos. | 18th Feb 1931 | Box 47 \ 3 Scan024 | |
| Various vehicle component issues, their status, and proposed or implemented resolutions. | 18th Feb 1931 | Box 47 \ 3 Scan025 | |
| Status report on various vehicle components and issues, including leaks, wiring, and pumps for models like the Phantom I & II and the 20/25HP. | 18th Feb 1931 | Box 47 \ 3 Scan026 | |
| Confirming modifications for Mr. Fairey's Phantom II car, including a higher compression head and stiffer brake drums. | 27th Mar 1931 | Box 47 \ 3 Scan027 | |
| Querying whether to investigate a chassis following a complaint or offer it for immediate sale. | 28th Mar 1931 | Box 47 \ 3 Scan028 | |
| Supply of blueprints for a replacement cylinder head for chassis 34-GN. | 30th Mar 1931 | Box 47 \ 3 Scan029 | |
| Brake upgrades and a new high compression head for Mr. Fairey's car, 34-GN. | 31th Mar 1931 | Box 47 \ 3 Scan030 | |
| Modifications to be made to Mr. Fairey's Phantom 11 car. | 31th Mar 1931 | Box 47 \ 3 Scan031 | |
| Typed memo from Hs. to C. stating that chassis 100-GY is of no use after testing. | 31th Mar 1931 | Box 47 \ 3 Scan032 | |
| Arrangements for getting hold of Mr. Fairey's Phantom. | 1st Apr 1931 | Box 47 \ 3 Scan033 | |
| Customer complaints monthly report detailing issues with Phantom II and 25 HP models, including vibrations, brake squeaks, and shock absorbers. | 8th Apr 1931 | Box 47 \ 3 Scan034 | |
| Ongoing issues and resolutions for various vehicle components including springing, clutches, and exhaust systems. | 8th Apr 1931 | Box 47 \ 3 Scan035 | |
| Faults and resolutions for various vehicle components. | 8th Apr 1931 | Box 47 \ 3 Scan036 | |
| Faults and fixes for issues including radiator leaks, fan pulleys, oil pumps, and engine piston knocks. | 8th Apr 1931 | Box 47 \ 3 Scan037 | |
| Progress report on various vehicle component issues, including valve springs, oil leaks, and electrical systems. | 8th Apr 1931 | Box 47 \ 3 Scan038 | |
| Water pump fabric drive oil shield for the 20/25 HP model and engine water leaks from cylinders. | 8th Apr 1931 | Box 47 \ 3 Scan039 | |
| Customer's angry complaint about a drumming noise in their Phantom II, chassis 119-GN. | 6th Apr 1931 | Box 47 \ 3 Scan040 | |
| 'Sg.' to 'Hs.' regarding a complaint letter from Mr. W.J. Iden about car 119-GN. | 9th Apr 1931 | Box 47 \ 3 Scan041 | |
| Personal letter of complaint regarding excessive noise in a Phantom II vehicle. | 3rd Apr 1931 | Box 47 \ 3 Scan042 | |
| Letter from Mr. Iden regarding vehicle performance, discussing both resolved faults and severe noise issues at high speeds. | 10th Apr 1931 | Box 47 \ 3 Scan043 | |
| Monthly report discussing customer complaints and the policy of delivering cars with known faults like piston knocks and brake squeaks. | 10th Apr 1931 | Box 47 \ 3 Scan044 | |
| Ongoing issues with clutches, shock absorbers, steering, and high tension wiring. | 10th Apr 1931 | Box 47 \ 3 Scan045 | |
| Internal correspondence regarding assigning work on Capt. Thistlethwaite's chassis 194-ON. | 13th Apr 1931 | Box 47 \ 3 Scan046 | |
| Responding to a customer complaints report, clarifying the policy on shipping cars with known faults and defending an employee's efforts. | 13th Apr 1931 | Box 47 \ 3 Scan047 | |
| Collection and servicing instructions for Mr. Iden's car, chassis 119-GN. | 15th Apr 1931 | Box 47 \ 3 Scan048 | |
| Proposed braking modifications for Capt. Thistlethwaite's car, chassis 194-GN. | 17th Apr 1931 | Box 47 \ 3 Scan049 | |
| Brake test report detailing stopping distances, pedal and toggle measurements, and noting a groaning issue from the rear brakes. | 24th Apr 1931 | Box 47 \ 3 Scan050 | |
| Brake test report for vehicle 194.GN, detailing measurements and a groaning issue. | 24th Apr 1931 | Box 47 \ 3 Scan051 | |
| Brake test report for vehicle 194-GN detailing specifications, settings and results. | 27th Apr 1931 | Box 47 \ 3 Scan052 | |
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