What was found
APU SURGE VLV FILTER ELEMENT SPRING IS MISSING FROM BETWEEN THE FILTER ELEMENT & THE REDUCER. INSTALLED SPRING PN 663466 FOR APU SURGE VLV FILTER ELEMENT & THE REDUCER IAW AMM 49-53-06. LEAK CHECK ACCOMPLISHED WITH NO LEAKS NOTED.
- Difficulty date
- May 12, 2014
- Submitted
- May 13, 2014
- Operation
- Air carrier
- Aircraft
- N640GT
- Make and model
- Boeing 7673S1
- Aircraft serial
- 25221
- Aircraft time
- 74,243 hours, 15,642 cycles
- System (JASC)
- 4950 · APU Bleed Air System
- Part
- Spring
- Condition
- Missing
- Location
- Apu
- 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.