Service difficulty report · Relay · Boeing 737

Difficulty date
May 18, 2022
Submitted
May 20, 2022
Operation
Air carrier
Aircraft
N945AN
Make and model
Boeing 737
Aircraft serial
30085
Aircraft time
61,298 hours, 25,810 cycles
Part
Relay
Condition
Inoperative
Location
Zone 200 - Fuse
Stage of operation
CL
How discovered
O
Nature of condition
F
Precautionary procedure
A, D

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

What was found

AIRCRAFT WAS GROUNDED: AFTER TAKE OFF ON CLIMB OUT WE HAD NO ELECTRIC TRIM IN NOSE DOWN POSITION, NEITHER TRIM SWITCHES WORK ON PILOT OR COPILOT. REMOVED AND REPLACED SWITCH S844 (AALA202205207696) PER AMM 27-41-94, ALSO REMOVED AND REPLACED RELAY R850 PER WDM 27-41-12.