Mon, Oct 24, 2005
AWB 25-008 Issue: 1 Date: 21 October 2005
1. Applicability
Pacific Scientific Inertial reels,
identified in Pacific Scientific Alert Service Bulletin A25-1124A,
fitted to a wide range of aeroplanes and helicopters including
transport category and various light aircraft.
2. Purpose
To alert aircraft operators and maintainers to the
possibility of in-service failures of certain Pacific Scientific
shoulder harness retraction reels.
3. Background
A defect report detailed a badly worn shoulder harness retraction
reel shaft. The shaft was so badly worn, that it broke during reel
refurbishment. This shaft carries the loads of the upper torso, and
could have failed to provide the intended restraint for the
occupant under emergency conditions.
The manufacturer has issued Alert Service Bulletin A25-1124A, which
requires inspection of all shoulder strap harnesses that were
manufactured before June 1992. Shoulder harness reels, which were
manufactured by Pacific Scientific prior to June 1992, contain an
aluminium take-up shaft in the inertia reel that could, after
extensive use, experience excessive wear or breaking. Harness reels
manufactured after this date contained a stainless steel shaft, and
some reels have been fitted with the stainless steel shaft at
refurbishment. This corrected the problem.
4. Recommendation
Action in accordance with Pacific Scientific Alert Service
Bulletin A25-1124A, which includes removing affected harnesses from
service for refurbishment. A copy of the Alert Service Bulletin
A25-1124A, is attached.
More News
Aero Linx: JAARS Nearly 1.5 billion people, using more than 5,500 languages, do not have a full Bible in their first language. Many of these people live in the most remote parts of>[...]
'Airplane Bounced Twice On The Grass Runway, Resulting In The Nose Wheel Separating From The Airplane...' Analysis: The pilot reported, “upon touchdown, the plane jumped back>[...]
"Burt is best known to the public for his historic designs of SpaceShipOne, Voyager, and GlobalFlyer, but for EAA members and aviation aficionados, his unique concepts began more t>[...]
"Polaris Dawn, the first of the program’s three human spaceflight missions, is targeted to launch to orbit no earlier than summer 2024. During the five-day mission, the crew >[...]
There Are SO Many Ways To Get YOUR Aero-News! It’s been a while since we have reminded everyone about all the ways we offer your daily dose of aviation news on-the-go...so he>[...]