- Models
- 44A, 44B
- Data sheet
- TCDS1H12
- Product
- Aircraft · Rotorcraft
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 19 KB | 5b6b968a…5e888a1 | FAA DRS (API key needed) |
On this page
The airworthiness directive
60-10-10 VERTOL: Amdt. 140 Part 507 Federal Register May 4, 1960. Applies to all 44 series helicopters.
Compliance required as indicated.
All forward rotor blades P/N 42R1002-9, -13, -15, -19, -90, -130, -131, -132, -150, and - 152 must be retired at 800 hours of service time. All forward rotor blades P/N 42R1002-137 AND -139 and all aft rotor blades P/N 42R1002-2, -4, -20, and -40 must be retired at 1,350 hours of service time.
When the above blades are modified to 42R1002-42, -133, or -135 the provisions of this airworthiness directive no longer apply.
This supersedes AD 59-25-02.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.