Service difficulty report · Pin · Boeing 737990ER

Difficulty date
September 18, 2019
Submitted
October 22, 2019
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
14,111 hours, 4,493 cycles
Part
Pin
Condition
Not Seated
Location
Satcom
Stage of operation
TX
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

WE DID THE SATCOM QRH LOCKUP PROCEDURE ON THE GND AND GOT THE PROMPTS BACK. IN FLIGHT WE NOTICED THE LEFT FMC SAT PROMPT WENT AWAY. THE RT FMC STILL HAS THE PROMPT AND APPEARS TO BE WORKING. GROUNDED - YES. RESEATED PINS IN TB3301 W9084-9026 R/B-22, OPS CKS GOOD IAW AMM 23-15-00-730-801 STEP 1A(1)(F).