What was found
ALTIMETERS ARE OFF BY 40 FEET IN ALL PHASES OF FLIGHT. TROUBLESHOT TO NR 1 ADU. R & R NR 1 ADU IAW TC 6341101. PERFORMED LEAK CHECK IAW TC 6341102. ALL TESTS GOOD.
- Difficulty date
- January 27, 2014
- Submitted
- January 27, 2014
- Operation
- Air carrier
- Aircraft
- N400QX
- Make and model
- Bombdr DHC8402
- Aircraft serial
- 4030
- Aircraft time
- 30,488 hours, 31,876 cycles
- System (JASC)
- 3417 · Air Data Computer
- Part
- Air Data Module
- Part number
- C17053AC03
- Part serial
- 1033
- Condition
- Malfunctioned
- Location
- Nr 1
- Part time
- 10,064 hours, 10,723 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.