51-27-03: Nose Wheel Drain
FAA order 51-27-03 is an airworthiness directive published December 4, 1956. The FAA's subject line: Nose Wheel Drain. It names Piper PA-22 Tri-Pacer and Colt: about 2,943 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: landing gear.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Piper Aircraft Inc.
- Models
- PA-22
- On this site
- Piper PA-22 Tri-Pacer and Colt 2,943 registered
Dates and paperwork
- Published
- December 4, 1956
- 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 (841 characters)
51-27-03 PIPER: Applies to All Model PA-22 Aircraft, Serial Numbers 22-1 Through 22-354.
Compliance should be made before next flight in freezing temperature, but not later than December 15, 1951.
Driving rain or washing may cause an accumulation of water in nose wheel oleo housing which can freeze in lower bearing and render rudder system inoperative. To provide drainage, locate a 3/16-inch hole on aft side of nose wheel oleo housing, P/N 13035, centered 9/16-inch above lower edge of housing. Unless oleo strut is removed from housing, use extreme care not to damage oleo strut while drilling drain hole. Insure strut is drained. Fill upper end of housing and upper bearing area with generous amount of cup grease to seal against water.
(Piper Service Bulletin No. 119, dated November 7, 1951, covers this same subject.)
Related safety bulletins advice on the same designs, not orders
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
2005-07-07CE-05-67 ·
1998-10-21ACE-99-01 ·
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 6, 2026. Connections as data: /graph/directive/51-27-03.json · aircraft systems.