# AD 63-13-01: Propeller Inspection - Type: Airworthiness directive - Status: Current - Products: Boeing Airplane Company, Wichita Division 75 (Army PT-13), A75 (Army PT-13A, -13B, -13C), A75J1 (Army PT-18), A75L3, A75L300, A75N1 (Army PT-17, -17A, Navy N2S-1, -4), B75 (Navy N2S-5), B75N1 (Navy N2S-3), D75N1 (Army PT-27), E75 (Army PT-13D, Navy N2S-5, PT-13D/N2S-5), E75N1 (Army PT-13D, Navy N2S-5, PT-13D/N2S-5) and IB75A - Effective: June 21, 1963 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Registered aircraft: 1,654 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/098EA5DE8B7F748C86256CE5006FFBBC.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/63-13-01 ## The airworthiness directive 63-13-01 BOEING: Amdt. 579 Part 507 Federal Register June 21, 1963. Applies to All Model 75 Series Aircraft Equipped With Pratt & Whitney R-985 or Wright R-975 Series Engines and Western Propeller Repair Model W2-1 Propellers, Including Those Certificated in the Restricted Category. Compliance required as indicated. As a result of several propeller blade failures the following inspections are required: Within 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 225 hours' time in service, and thereafter at intervals not to exceed 250 hours' time in service from the last inspection, remove propeller blades from hub, clean surface as necessary and inspect by dye penetrant or equivalent method for evidence of cracks within the hub area and for at least 6 inches of shank portion of the blade outside of the hub. If no cracks are found blades may be returned to service. Any blades showing evidence of cracks are not eligible for repair and shall not be used again in certificated aircraft. The repetitive inspections required on Pratt and Whitney R-985 engines in this AD are no longer necessary when the engine crankshaft flyweight and flyweight liners have been reworked or replaced at each overhaul period as detailed in AD 65-07-02. This directive effective June 21, 1963. Revised October 13, 1965. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A-743](https://openairdocs.org/tcds/A-743): The Boeing Company; names 12 of 12 models: B75N1 (Navy N2S-3), 75 (Army PT-13), A75J1 (Army PT-18), E75 (Army PT-13D; Navy N2S-5; PT-13D/N2S-5), A75L3, E75N1 (Army PT-13D; Navy N2S-5; PT-13D/N2S-5), A75L300, A75 (Army PT-13A; -13B; -13C)… ## 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: 1,654 (1,654 by airframe model, 0 by engine model) - Makers: Boeing 1,642, Boeing Stearman/Huff 1, Boeing/Cains Richard G 1, Boeing/Dekker 1, Boeing/Hawk 1, Boeing/Humm Stanley 1, Boeing/Johnson 1, Boeing/Mays 1, Boeing/Mehrer 1, Boeing/Mountain View Air Rep 1 Models with the most aircraft: - [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17): 759 aircraft (airframe model) - [Boeing E75](https://openairdocs.org/model/boeing-e75): 261 aircraft (airframe model) - [Boeing B75N1](https://openairdocs.org/model/boeing-b75n1): 241 aircraft (airframe model) - [Boeing A75](https://openairdocs.org/model/boeing-a75): 93 aircraft (airframe model) - [Boeing E75N1](https://openairdocs.org/model/boeing-e75n1): 79 aircraft (airframe model) - [Boeing A75N1](https://openairdocs.org/model/boeing-a75n1): 59 aircraft (airframe model) - [Boeing D75N1](https://openairdocs.org/model/boeing-d75n1): 35 aircraft (airframe model) - [Boeing A75L300](https://openairdocs.org/model/boeing-a75l300): 33 aircraft (airframe model) - [Boeing A75L3](https://openairdocs.org/model/boeing-a75l3): 32 aircraft (airframe model) - [Boeing 75](https://openairdocs.org/model/boeing-75): 18 aircraft (airframe model) - [Boeing B75](https://openairdocs.org/model/boeing-b75): 15 aircraft (airframe model) - [Boeing IB75A](https://openairdocs.org/model/boeing-ib75a): 12 aircraft (airframe model) - [Boeing E75(N2S-5)](https://openairdocs.org/model/boeing-e75-n2s-5): 2 aircraft (airframe model) - [Boeing A75J1](https://openairdocs.org/model/boeing-a75j1): 2 aircraft (airframe model) - [Boeing/Smith A75N1](https://openairdocs.org/model/boeing-smith-a75n1): 1 aircraft (airframe model) - [Boeing/Dekker A75N1](https://openairdocs.org/model/boeing-dekker-a75n1): 1 aircraft (airframe model) - [Boeing Stearman/Huff A75-N1](https://openairdocs.org/model/boeing-stearman-huff-a75-n1): 1 aircraft (airframe model) - [Boeing/Mays A75N1](https://openairdocs.org/model/boeing-mays-a75n1): 1 aircraft (airframe model) - [Boeing/Hawk E-75](https://openairdocs.org/model/boeing-hawk-e-75): 1 aircraft (airframe model) - [Boeing/Porter/Epperson B-75N1](https://openairdocs.org/model/boeing-porter-epperson-b-75n1): 1 aircraft (airframe model) All 27 models: https://openairdocs.org/ad/63-13-01/models.md Every aircraft: https://openairdocs.org/ad/63-13-01/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.