| AD Number | 72-07-02 | Status | Active |
| Effective Date | March 25, 1972 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-1415 |
| Product Type | ["Aircraft"] | Product Subtype | ["Small Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Cessna Aircraft Company |
| Model(s) | 172 172A 172B 172C 172D 172E 172F (USAF T-41A) 172G 172H (USAF T-41A) 172I 172K |
72-07-02 CESSNA: Amdt. 39-1415. Applies to the following airplanes:
MODELS
SERIAL NUMBERS AFFECTED
172
28000 thru 29999
172
36000 thru 36999
172
46001 thru 46754
172A
46755 thru 47746
172B
17247747 thru 17248734
172C
17248735 thru 17249544
172D
17249545 thru 17250572
172E
17250573 thru 17251822
172F
17251823 thru 17253392
172G
17253393 thru 17254892
172H
17254893 thru 17256512
172I
17256513 thru 17257161
172K
17257162 thru 17258855
Compliance: Required as indicated, unless already accomplished.
To reduce the possibility of engine power interruption at altitudes above 5000 feet caused by vapor formation in the fuel lines, accomplish the following:
(A) Effective now, the airplane must be operated on a single fuel tank immediately upon reaching cruise altitudes above 5000 feet.
(B) On or before April 1, 1972, install at the fuel selector valve applicable Cessna placards P/N's 0509021-1, 0509021-2 or 0509021-3 as provided with Cessna Service Letter SE72-7, dated March 17, 1972, or any FAA-approved equivalent placard which reads as follows: SWITCH TO SINGLE TANK OPERATION IMMEDIATELY UPON REACHING CRUISE ALTITUDES ABOVE 5000 FEET.
(C) Compliance with the provisions of Paragraphs A and B is no longer required when the fuel system has been modified by the installation of applicable Cessna Kit No. SK172-31B or SK172-32 referenced by Cessna Service Letter SE72-7, dated March 17, 1972, or by the accomplishment of any equivalent method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.
This amendment becomes effective March 25, 1972.