What was found
APU RELIABILITY COLD SOAK START ATTEMPTED. SAT -60 DEGREES C, FL 400. START UNSUCCESSFUL AFTER THREE ATTEMPTS.(<P>NOTED BY MX. MEL # 147790 FOR COLD SOAK REMAINS OPEN.</P>)
- Difficulty date
- June 3, 2021
- Submitted
- June 7, 2021
- Operation
- Air carrier
- Aircraft
- N649GT
- Make and model
- Boeing 767375
- Aircraft serial
- 25864
- Aircraft time
- 93,002 hours, 23,770 cycles
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Apu
- Condition
- Malfunctioned
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.