What was found
APU SURGING. REMOVED AND REPLACED SENSING MODULE IAW 49-53-08. ALSO FOUND GASKET FROM FLOW SENSOR DETERIORATED. INSTALLED NEW GASKET, PERFORMED OPS CHECK APU OK AND NO MORE SURGING.
- Difficulty date
- December 3, 2017
- Submitted
- December 12, 2017
- Operation
- Air carrier
- Aircraft
- N1997A
- Make and model
- Boeing 76733A
- Aircraft serial
- 27310
- Aircraft time
- 92,855 hours, 18,384 cycles
- System (JASC)
- 4920 · APU Core Engine
- Part
- Module
- Part number
- 36144008
- Part serial
- 4083
- Condition
- Malfunctioned
- Location
- Apu
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.