Service difficulty report · Computer · Boeing 737900ER

Difficulty date
November 18, 2020
Submitted
November 20, 2020
Operation
Air carrier
Aircraft
N908DN
Make and model
Boeing 737900ER
Aircraft serial
64881
Aircraft time
5,829 hours, 2,329 cycles
Part
Computer
Part number
285A1010109
Part serial
F11023
Condition
Inoperative
Location
Nr 1 Stick Shake
Part time
19,098 hours, 7,384 cycles
Stage of operation
CR
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DIV- DIVERTED TO DEN DUE TO BOTH STICK SHAKERS CONTINUOUSLY ACTIVATED. ON ARRIVAL RIGHT STICK SHAKER ACTIVATED, RESET C/B. PERFORMED LT-RT SMYD COMPUTER BITE CHECKS, SMYD-1 FAULT 27-31009. SMYD-2 FAULT 27-32009 RECORDED. REPLACED RT AOA SENSOR AND SMYD-2. OPERATIONS CHECKS GOOD. REPLACED LT AOA SENSOR AND SMYD-1 PRECAUTIONARY. PERFORMED WIRING CHECKS BETWEEN BOTH TEST SWITCHES AND LT-RT STICK SHAKERS. OPERATIONS CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.

More about the Boeing 737-900ER