# AD 64-14-05: Main Landing Gear Support Fitting - Type: Airworthiness directive - Status: Current - Products: Lockheed Martin 188A and 188C - Effective: June 26, 1964 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/450D2B33996C6034862569B60065BD68.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/64-14-05 ## The airworthiness directive 64-14-05 LOCKHEED: Amdt. 738 Part 507 Federal Register May 26, 1964. Applies to All Models 188A and 188C Series Aircraft on Which The Main Landing Gear Actuator Support Fitting, Lockheed P/N 800618, Has Accumulated More Than 5,000 Hours' Time in Service. Compliance required as indicated. To eliminate the possibility of jamming the main landing gear, accomplish the following: (a) For operators maintaining records of landings, within 225 landings after the effective date of this AD unless already accomplished within the last 775 landings, and thereafter at intervals not to exceed 1,000 landings, comply with (c). If a fitting is replaced in accordance with (d), the next inspection in accordance with (c) shall be accomplished within 5,225 landings from that time and at periodic intervals thereafter not to exceed 1,000 landings. Where past records of landings are unavailable, the number of landings prior to the effective date of this AD may be obtained by substituting one landing for each hour of time in service prior to the effective date of this AD. (b) For operators not maintaining records of landings, within 225 hours' time in service after the effective date of this AD, unless already accomplished within the last 775 hours' time in service and thereafter at intervals not to exceed 1,000 hours' time in service, comply with (c). If a fitting is replaced in accordance with (d), the next inspection in accordance with (c) shall be accomplished within 5,225 hours' time in service from that time and at periodic intervals thereafter not to exceed 1,000 hours' time in service. (c) Inspect the aft end of the main landing gear actuator support fittings for fatigue cracks in accordance with Lockheed 88 Alert Service Bulletin No. 599A, Section 2.A through 2.C or an FAA approved equivalent. (d) Replace cracked actuator support fittings detected during the accomplishment of (c) before further flight in accordance with Section 2.E(1) through 2.E(10) of Lockheed 88 Alert Service Bulletin No. 599A and Section 2 of Lockheed Service Bulletin No. 538 or equivalent approved by the Chief, Aircraft Engineering Division, FAA Western Region. (e) Spar cap cracks and plank cracks detected during compliance with Section 2.E(4) of 88/SB-599A shall be repaired in accordance with the Lockheed Structural Repair Manual or an equivalent approved by the Chief, Aircraft Engineering Division, FAA Western Region, before further flight, except that the aircraft may be ferried in accordance with the provisions of CAR 1.76 to the base at which the repairs are to be accomplished. (f) The periodic inspections described in (a) and (b) may be discontinued when P/N 800618-3 is replaced by P/N 841275-101 and P/N 800618-4 is replaced by P/N 841275-102. (g) Upon request of the operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, FAA Western Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the increase for such operator. (Lockheed Alert Service Bulletin Nos. 88/SB-599A and 88/SB-538 cover this same subject.) This directive effective June 26, 1964. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS 4A22](https://openairdocs.org/tcds/4A22): Lockheed Martin Corporation; names 2 of 2 models: 188A, 188C ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 4 (4 by airframe model, 0 by engine model) - Makers: Lockheed 4 Models with the most aircraft: - [Lockheed 188C](https://openairdocs.org/model/lockheed-188c): 3 aircraft (airframe model) - [Lockheed 188A](https://openairdocs.org/model/lockheed-188a): 1 aircraft (airframe model) All 2 models: https://openairdocs.org/ad/64-14-05/models.md Every aircraft: https://openairdocs.org/ad/64-14-05/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.