What was found
SPRINGS PN 69-77855-2 ARE BROKEN IN THE AUXILIARY BRAKE SYSTEM. POSSIBLE CAUSE: IMPROPER HEAT-TREATING OR INCORRECT ALLOYS IN THE SPRINGS. REPLACED SPRINGS. (X)
- Difficulty date
- February 7, 2000
- Submitted
- May 1, 2000
- Operation
- Air carrier
- Make and model
- Boeing 737*
- System (JASC)
- 2742 · Stabilizer Actuator
- Part
- Spring
- Part number
- 69778552
- Condition
- Cracked
- Location
- Horizontal Stab
- Part time
- 43,008 hours
- Component
- Horiz Stab Trim Act · Boeing
- Component part number
- 65C347516S
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.