# AD 75-17-13: Tail Rotor Blade Tip Cap

- Type: Airworthiness directive
- Status: Current
- Products: Airbus Helicopters Deutschland BO-105A and BO-105C
- Effective: August 18, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2315
- Registered aircraft: 4 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4BF085EC9DF2CC8F86256A3A006D6685.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-17-13

## The airworthiness directive

75-17-13 MESSERSCHMITT-BOLKOW-BLOHM.: Amendment 39-2315. Applies to Messerschmitt-Bolkow-Blohm (MBB) Models BO-105A and BO-105C helicopters, certificated in all categories, incorporating tail rotor blade P/N 105-31742, Serial Numbers 548 and lower. Compliance is required within the next 100 hours' time in service after the effective date of this AD, unless already accomplished in accordance with MBB BO-105 Service Bulletin No. 30-8. To prevent failure of the tail rotor blade tip cap, inspect tail rotor blades for condition, modify as prescribed, and return to service, in accordance with paragraph 2 of MBB BO-105 Service Bulletin No. 30-8, dated July 5, 1974, or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region. This amendment becomes effective August 18, 1975.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H3EU](https://openairdocs.org/tcds/H3EU): Airbus Helicopters Deutschland GmbH (AHD); names 2 of 5 models: BO-105C, BO-105A

## 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: Messerschmitt-Boelkow-Blohm-Gm 4

Models with the most aircraft:

- [Messerschmitt-Boelkow-Blohm-Gm BO-105C](https://openairdocs.org/model/messerschmitt-boelkow-blohm-gm-bo-105c): 4 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/75-17-13/models.md
Every aircraft: https://openairdocs.org/ad/75-17-13/aircraft.md

Its text cites no advisory circulars or STCs.

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