| AD Number | 72-15-02 | Status | Active |
| Effective Date | September 01, 1972 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-1508 |
| Product Type | ["Appliance"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Prestolite Company |
| Model(s) | Alternator Cooling Fans |
72-15-02 PRESTOLITE: Amendment 39-1487 as amended by amendment 39-1508. Applies to Prestolite alternator cooling fans, P/N's PU1605 and PU1605A installed on Prestolite Models ALE6406, ALE 6406R, ALE 8105A, ALE 8105S, ALE 8406, ALE 8406R, ALE 8408, ALE 8408R, ALH 5105, ALH 5105S, ALH 5106S, ALT 5101A, ALT 5101R, ALT 5102S, ALT 8403, ALT 8404, ALT 8404R, ALT 8404RS, ALT 8404LS, ALU 8403, ALU 8403R, ALU 8403RS, ALU 8403LS, ALX 6406, ALX 8403, ALX 8403R, ALX 8403RS, ALX 8403LS, ALY 6406, ALY 6406R, ALY 6407, ALY 6408, ALY 8402, ALY 8403, ALY 8403R, ALY 8403RS, ALY 8403LS, ALY 8405, ALY 8405R, ALY 8410, ALY 8410R, ALZ 8401, ALZ 8401R, alternators utilized in various makes and models of aircraft engines.
Compliance: Required as indicated, unless already accomplished.
To preclude in-service failures of alternator cooling fans accomplish the following:
A) On all aircraft with more than 100 hours' time in service, within the next 25 hours' time in service, unless already accomplished within the previous 75 hours' time in service and thereafter at intervals not to exceed 100 hours' time in service from the last inspection, remove and visually inspect the alternator cooling fan for damage, distortion, cracks, or breaks. Replace all alternator cooling fans found damaged, distorted, cracked or broken with an airworthy fan prior to return to service. Replacement and/or reinstallation of the fan should be accomplished in accordance with the directions set forth in Prestolite Service Bulletin No. ASM-4 revised December 27, 1971.
NOTE: When removing and replacing the pulley retaining nut do not use the cooling fan to prevent rotation of the alternator shaft. Use of the fan to prevent shaft rotation can result in bending and distortion of the fan that will require it to be replaced.
B) No later than January 1, 1973, replace PU1605 and PU1605A Prestolite alternator cooling fan as applicable with 90-2241 Prestolite alternator cooling fan (consisting oftwo plates - Part Nos. PU604A and PU605A) in accordance with Prestolite Service Bulletin ASM-8, dated May 30, 1972, or any alternate replacement approved by Chief, Engineering and Manufacturing Branch, Great Lakes Region.
This AD 72-15-2 amendment 39-1487 superseded AD 72-1-5.
Amendment 39-1487 became effective July 27, 1972.
This amendment 39-1508 becomes effective September 1, 1972.