AD 71-26-03

Airworthiness directive · Servo Support Bracket · Sikorsky S-55 and S62A

Effective
December 30, 1971
Models
S-55, S62A
Data sheets
TCDS1H13TCDS1H4
Registered aircraft
5 matched by model
Product
Aircraft · Rotorcraft
Amendment
39-1363

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.

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The airworthiness directive

71-26-03 SIKORSKY AIRCRAFT: Amdt. 39-1363. Applies to Sikorsky S-62A and S- 55 type Helicopters certified in all categories.

Compliance required as follows:

To preclude the failure of the S-62A and S-55 Servo Support Bracket P/N 1440-2415.

1. Unless already accomplished within the last 95 hours in service, inspect the servo support bracket within the next 25 hours in service after the effective date of this AD, in accordance with Part I subparagraph A and B of Accomplishment Instructions of Sikorsky Service Bulletins 55B40-6 or 62B40-8 as applicable dated October 1, 1971 or later FAA- approved revision or an alternate method approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

2. Inspect the bracket within 120 hours in service after the inspection in paragraph 1 of this airworthiness directive and every 120 hours thereafter in accordance with Part I subparagraph B of Accomplishment Instructions of Sikorsky Service Bulletins 55B40-6 or 62B40-8 as applicable dated October 1, 1971 or later approved revision or an alternate method approved by the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

3. Conduct fluorescent magnetic particle inspection in accordance with Part II Accomplishment Instructions of SIK S/B 55B40-6 or 62B40-8 as applicable at gear box overhaul or 1250 hours, whichever comes first; or an alternate method approved by Chief, Engineering and Manufacturing Branch, FAA, Eastern Region.

This amendment is effective December 30, 1971.

Affected TCDS · 2

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 5

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Sikorsky3 aircraft
  • Sikorsky/Orlando1 aircraft
  • Sikorsky/Vertical1 aircraft
By year built
19531997
Registered aircraft by year built: 5 aircraft
19531
19541
19571
19961
19971

By model

Aircraft