| AD Number | 82-12-04 | Status | Active |
| Effective Date | June 07, 1982 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-4396 |
| Product Type | ["Appliance"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Cessna Aircraft Company Detroit Diesel Allison Nomad TC Pty Ltd Rolls-Royce Corporation |
| Model(s) | 401 401A 401B 402 402A 402B 414 Power turbine and Governor Assemblies N22B N24A 250-B15G 250-B17 250-B17B 250-B17C |
82-12-04 DETROIT DIESEL ALLISON: Amendment 39-4396. Applies to Detroit Diesel Allison (DDA) combined power turbine and propeller governor assembly, DDA P/N 6875708, (Woodward P/N 8210-018) with the following serial numbers:
904780A
1751790A
1282800A
1751791A
1282910A
1751812A
1282921A
1752008A thru 1752011A
1283049A thru 1283081A
1752015A
1585707A thru 1585740A
1752147A
1704950A thru 1704968A
1752148A
1709149A
1752132A
171127A
1753623A
1713260A thru 1713263A
1753624A
1720002A
1806013A
1720003A
1806047A
1720471A
1807845A
1720472A
1807846A
1720989A
1807957A
1740062A
1807958A
1740063
1808591A
1740231A
1808973A
1743198A
1812386A
1743199A
1812819A
1746476A
1814712A
1746508A
1814713A
1747637A
1816433A
1747638A
1819864A
1747642A thru 1747645A
1820615A thru 1820617A
1747750A
1820648A
1747751A
1821184A
1747817A
1821845A
1747948A
1821854A
1748560A
1821882A
1749652A
1823181A
1750586A
1823182AThe above governors are installed on, or are spares for, Detroit Diesel Allison 250-B15G, B17, B17B, and B17C engines which are installed on, but not limited to, Cessna 401, 401A, 401B, 402, 402A, 402B, and 414 airplanes modified in accordance with STC SA117NW and Government Aircraft Factories (GAF) Nomad N22B and N24A.
Compliance is required, unless already accomplished, within the next 50 hours time in service or the next 30 days, whichever occurs first, after the effective date of this AD.
a. Complete the ground functional check in accordance with the accomplishment instructions of Detroit Diesel Allison Alert Service Bulletin No. CEB-A-87 or CEB-A-1151, or later FAA-approved revision, as appropriate.
b. Governors that fail the check must be removed and replaced with a properly calibrated governor prior to next flight.
Equivalent means of compliance may be approved by the Chief, Chicago Aircraft Certification Office, Federal Aviation Administration (FAA), 2300East Devon Avenue, Chicago, Illinois.
NOTE: The following service bulletins refer to this subject:
DDA No. CEB-A-87, for 250-B15G engines, dated February 5, 1982.
DDA No. CEB-A-1151, for 250-B17, -B17B, and -B17C engines, dated February 5, 1982.
Woodward No. 33577, dated February 1982.
This amendment becomes effective June 7, 1982