79-17-05: Fuel Gauges and Engine Instruments
FAA order 79-17-05 is an airworthiness directive in force since August 22, 1979. The FAA's subject line: Fuel Gauges and Engine Instruments. It names Piper PA-38 Tomahawk: about 442 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
- Aircraft
- Makes
- Piper Aircraft Inc.
- Models
- PA-38-112
- On this site
- Piper PA-38 Tomahawk 442 registered
Dates and paperwork
- In force since
- August 22, 1979
- Published
- August 20, 1979 (signed August 8, 1979)
- 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 (1,081 characters)
79-17-05 PIPER: Amendment 39-3531. Applies to Model PA-38-112 serial numbers 38-78A0002 thru 38-78A0027, 38-78A0029 thru 38-78A0037, 38-78A0039 thru 38-78A0041, 38-78A0043, 38-78A0045 thru 38-78A0064, 38-78A0066 thru 38-78A0072, and 38-78A0074 thru 38-78A0104.
Compliance required as indicated unless already accomplished.
a. To prevent the occurrence of insufficient or intermittent grounding of the fuel gauges and engine instrument cluster, accomplish the following:
Within the next 25 hours in service after the effective date of this AD, install ground wire harness assembly P/N 77960-400 and connect leads to instruments and terminal ground strip in accordance with Piper Service Bulletin No. 603, or an approved equivalent alteration.
Equivalent alterations must be approved by the Chief, Engineering and Manufacturing Branch, Federal Aviation Administration (FAA), Eastern Region.
b. Aircraft may be flown in accordance with 21.197 to a base where the modification required by this AD can be accomplished.
This amendment is effective August 22, 1979.
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 October 30, 2026. Connections as data: /graph/directive/79-17-05.json · aircraft systems.