What was found
AIRCRAFT WAS GROUNDED: PASSING FL200 VNAV DISCONNECTED ON CAPTAINÏ¿½S SIDE. AIRSPEED FLUCTUATED. PFD FLAG IN VIEW. RETURNED TO ORD. REPLACED FIRST OFFICER'S PITOT AIR DATA MODULE PER AMM 37-21-04.
- Difficulty date
- May 27, 2021
- Submitted
- May 28, 2021
- Operation
- Air carrier
- Aircraft
- N837NN
- Make and model
- Boeing 737823
- Aircraft serial
- 30908
- Aircraft time
- 33,127 hours, 13,530 cycles
- System (JASC)
- 3417 · Air Data Computer
- Part
- Module
- Condition
- Fluctuates
- Location
- Captain'S Adc
- Stage of operation
- CL
- 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.