69-16-05: Lower Gear Box and Oil Outlet Magnetic Plugs
FAA order 69-16-05 is an airworthiness directive in force since August 30, 1969. The FAA's subject line: Lower Gear Box and Oil Outlet Magnetic Plugs. It names the Rolls-Royce 250-C18 engine: about 1 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- Rolls-Royce Corporation
- Models
- 250-C18
- Engine series
- Rolls-Royce 250-C18 1 aircraft
Dates and paperwork
- In force since
- August 30, 1969
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (1,095 characters)
69-16-05 ALLISON: Amdt. 39-829. Applies to Model 250-C18 engines installed in Bell Model 206A Helicopters.
Compliance: Required as indicated.
To detect incipient engine failure, accomplish the following:
A) Effective immediately upon receipt of this Airworthiness Directive, inspect the lower gear box and the oil outlet magnetic plugs on a daily basis as described in Allison Commercial Service Letter 250 CSL No. 6, dated January 12, 1967. This inspection shall be performed at time intervals not to exceed five (5) hours' time in service.
B) On or before November 3, 1969, install a visual magnetic plug indicator as described in Bell Service Letter 206A-129, dated August 11, 1969, or later FAA approved revision or an equivalent installation approved by Chief, Engineering & Manufacturing Branch, FAA, Central Region.
C) When the installation described in Paragraph B of this Airworthiness Directive has been accomplished, the inspections required by Paragraph A of this Airworthiness Directive will no longer be required.
Effective August 13, 1969, revised August 30, 1969.
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 2, 2026. Connections as data: /graph/directive/69-16-05.json · aircraft systems.