# AD 92-10-10: Main Landing Gear Brakes

- Type: Airworthiness directive
- Status: Current
- Products: Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, 707-300C Series, 707-400 Series, 720 Series and 720B Series
- Effective: July 2, 1992
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-8244
- Docket: 91-NM-216-AD
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/17AC79D6AA9A8F298625696E0064FC45.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/92-10-10

## The airworthiness directive

92-10-10 BOEING: Amendment 39-8244. Docket No. 91-NM-216-AD.

Applicability: Model 707 and 720 series airplanes, equipped with brake part numbers (P/N) identified in paragraph (a) of this AD, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent the loss of main landing gear braking effectiveness, accomplish the following:

  (a) Within 180 days after the effective date of this AD, accomplish paragraphs (a)(1) and (a)(2) of this AD:

  (1) Inspect the main landing gear brakes, having brake part numbers shown below, for wear. Any brake worn more than the maximum wear limit specified below must be replaced, prior to further flight, with a brake within that limit.

Brake Mfr. Brake P/N Boeing P/N Maximum Wear Limit

Bendix 150550 10-3072-1,-11 0.60 inch Bendix 2601775 None 0.70 inch BFGoodrich 2-756-2 10-60228-1 0.51 inch BFGoodrich 2-784-1 10-3379-11 0.35 inch BFGoodrich 2-991 10-60228-8 0.51 inch ABS 9560569 10-60818-1 0.528 inch

  (2) Incorporate the maximum brake wear limits specified in paragraph (a)(1) of this AD into the FAA-approved maintenance inspection program.

  (b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. The request shall be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle ACO.

  (c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

  (d) This amendment becomes effective on July 2, 1992.

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 4A21](https://openairdocs.org/tcds/4A21): The Boeing Company; names 4 of 4 models: 707-100B Short Body, 707-200, 707-100 Long Body, 707-100B Long Body
- [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 4 of 4 models: 707-300B Series, 707-400 Series, 707-300 Series, 707-300C Series
- [TCDS 4A28](https://openairdocs.org/tcds/4A28): The Boeing Company; names 2 of 2 models: 720B Series, 720 Series

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Boeing 6

Models with the most aircraft:

- [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c): 2 aircraft (airframe model)
- [Boeing 707-368C](https://openairdocs.org/model/boeing-707-368c): 1 aircraft (airframe model)
- [Boeing 707-321B](https://openairdocs.org/model/boeing-707-321b): 1 aircraft (airframe model)
- [Boeing 707-323B](https://openairdocs.org/model/boeing-707-323b): 1 aircraft (airframe model)
- [Boeing 707-351B](https://openairdocs.org/model/boeing-707-351b): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/92-10-10/models.md
Every aircraft: https://openairdocs.org/ad/92-10-10/aircraft.md

Its text cites no advisory circulars or STCs.

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