Airworthiness Directive · Amendment 39-15618 · Cessna Aircraft Company Models 175 and 175A Airplanes
Cessna Aircraft Company Models 175 and 175A Airplanes
Superseded. A later AD replaced this one: AD 2016-14-05. Comply with the one in force.
This AD applies to the following airplane models and serial numbers that are certificated in any category:
| Model | Serial Nos. | Year manufactured |
|---|---|---|
| (1) 175 | 55001 through 55703 | 1958. |
| (2) 175 | 55704 through 56238 | 1959. |
| (3) 175 | 28700A, 626, and 640 | 1958 and 1959. |
| (4) 175A | 691, and 56239 through 56777 | 1960. |
We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 175 and 175A airplanes. This AD requires you to check the airplane logbook to determine if the original engine mounting brackets have been replaced. If the original engine mounting brackets are still installed, this AD requires you to repetitively inspect those brackets for cracks and replace any cracked engine mounting bracket. After replacing all four original engine mounting brackets, no further action will be required by this AD. This AD was prompted by a report that the engine became detached from the firewall during landing on one of the affected airplanes. We are issuing this AD to detect and correct cracks in the engine mounting brackets, which could result in failure of the engine mounting bracket. This failure could lead to the engine detaching from the firewall.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Check the airplane logbook to determine if all four of the original engine mounting brackets have been replaced | Within the next 30 days after September 2, 2008 (the effective date of this AD) | The owner/operator holding at least a private pilot certificate as authorized by section 43.7 may do this action. |
| (2) If you can positively determine that all four of the original engine mounting brackets have been replaced, no further action is required | Not applicable | Make an entry into the aircraft logbook showing compliance with this portion of the AD in accordance with 14 CFR 43.9. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 may do this action. |
| (3) If you cannot positively determine that all four of the original engine mounting brackets have been replaced, inspect each of the upper and lower engine mounting brackets on both the left and right sides for cracks as specified in the service bulletin | Initially inspect within the next 12 months after September 2, 2008 (the effective date of this AD). If no cracks are found, repetitively inspect thereafter at intervals not to exceed 500 hours time-in-service (TIS) until all four of the original engine mounting brackets are replaced | Follow Cessna Single Engine Service Bulletin SEB07-2, Revision 2, dated June 18, 2007. |
| (4) If cracks are found in any of the engine mounting brackets during any inspection required in paragraph (e)(3) of this AD, replace the cracked engine mounting bracket(s) | Before further flight after the inspection in which cracks are found. Replacing the cracked engine mounting bracket terminates the repetitive inspection required in paragraph (e)(3) of this AD only for the replaced engine mounting bracket | Follow Cessna Single Engine Service Bulletin SEB07-2, Revision 2, dated June 18, 2007. |
| (5) To terminate the repetitive inspections required in paragraph (e)(3) of this AD, you may replace all four original engine mounting brackets | At any time before or after the initial inspection required in paragraph (e)(3) of this AD | Follow Cessna Single Engine Service Bulletin SEB07-2, Revision 2, dated June 18, 2007. |
| (6) Dispose of every replaced bracket following 14 CFR 43.10, paragraph (c)(6), which states the following: “Mutilation. The part may be mutilated to deter its installation in a type certificated product. The mutilation must render the part beyond repair and incapable of being reworked to appear to be airworthy” | Before further flight after the engine mounting bracket is removed for replacement | Not applicable. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
