- Effective
- June 19, 1978
- Published
- June 15, 1978
- Issued
- June 5, 1978
- Models
- PA-30, PA-39
- Data sheet
- TCDSA1EA
- Registered aircraft
- 960 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-3235
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 November 21, 2025.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
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On this page
The airworthiness directive
78-12-07 PIPER: Amendment 39-3235. Applies to Piper Aircraft PA-30 and PA-39 with Serial Numbers 30-1 through 30-2000 and 39-1 through 39-155 which have had a right fuel selector valve P/N 492137 (Airborne P/N 1H7-8) changed since April, 1977, with a valve containing the designation "4C" in the valve serial number.
Compliance required before further flight unless already accomplished.
1. Replace any right fuel selector valve, Piper P/N 492137 (Airborne P/N 1H7-8) containing the designation "4C" in the valve serial number with a serviceable valve without the "4C" designation.
2. The replacement fuel selector valve shall be installed and adjusted in accordance with PA-30/39 Service Manual.
(Piper Service Bulletin No. 597 dated April 19, 1978, pertains to this subject.)
This amendment is effective June 19, 1978.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 960
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1957 | 1 |
|---|---|
| 1963 | 82 |
| 1964 | 158 |
| 1965 | 101 |
| 1966 | 172 |
| 1967 | 103 |
| 1968 | 36 |
| 1969 | 106 |
| 1970 | 32 |
| 1971 | 24 |
| 1972 | 7 |
| 1985 | 1 |
137 with no year recorded