Service difficulty report · Autothrottle Sys · Boeing 737990ER
FAA SDR system
- Difficulty date
- April 4, 2019
- Submitted
- April 5, 2019
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 61620
- Aircraft time
- 12,313 hours, 3,962 cycles
- Part
- Autothrottle Sys
- Condition
- Malfunctioned
- 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
IN CRUISE, AUTOTHROTTLES DISENGAGED. C/B P18 E-1 POPPED. GROUNDED - YES. ACCOMPLISHED C/B RESET PROCEDURE REF. B737-900 AMM 20-60-01. RESET AUTOTHROTTLE DC-1 ON P18-1. CURRENT STATUS TEST SHOWS MSG. 22-31544 A/T DISENGAGE THRU LVR-1. ACCOMPLISHED FIM 22-32 TASK 805. AUTOTHROTTLE BITE OPS NORMAL REF. 22-31 TASK 801.