- Models
- GC-1A, GC-1B
- Data sheet
- TCDSA-766
- Registered aircraft
- 541 matched by model
- Product
- Aircraft · Small airplane
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 | 5d05674e…22622e4 | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-25-06 GLOBE: (Was Mandatory Note 10 of AD-766-5.) Applies to Models GC-1A and GC-1B Aircraft Serial Numbers 3 to 157 Inclusive, and Number 159.
Compliance required prior to August 1, 1947.
Remove the carburetor flexible air duct, P/N 11-440-3405 and metal air intake scoop, at point of attachment at rear right engine cylinder and outboard connection to the right exhaust heater shroud. Replace with flexible air duct, Globe P/N 11-440-3648, and elbow, Globe P/N 11- 440-3729. This is necessary to prevent collapsing of the air duct when the carburetor air heater is used.
(Globe Customer Service Maintenance Bulletin No. 5 covers this same subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 541
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1945 | 1 |
|---|---|
| 1946 | 317 |
| 1947 | 7 |
| 1948 | 80 |
| 1949 | 10 |
| 1950 | 11 |
| 1951 | 3 |
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1956 | 3 |
| 1957 | 1 |
| 1978 | 1 |
104 with no year recorded