What was found
APU FAULT LIGHT ILLUMINATED AND APU SHUTDOWN. PERFORMED BITE CHECK ON APU ECU AND READ (FILTER SW (GEN))LIGHT. IAW FIM, REMOVED AND REPLACED DELTA P SWITCH IAW MM. NO FAULTS NOTED. (K)
- Difficulty date
- June 2, 2006
- Submitted
- June 9, 2006
- Operation
- Air carrier
- Aircraft
- N550TZ
- Make and model
- Boeing 75733N
- Aircraft serial
- 32584
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Switch
- Part number
- 38760483
- Condition
- Unserviceable
- Location
- Apu
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- H
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.