SDR AALA202401243069

Service difficulty report · Fuel Sys · Boeing 737823

Difficulty date: January 22, 2024
Submitted: January 24, 2024
Operation: Air carrier
Aircraft: N827NN
Make and model: Boeing 737823
Aircraft serial: 33209
Aircraft time: 40,880 hours, 17,176 cycles
System (JASC): 2820 · Aircraft Fuel Distribution System
Part: Fuel Sys
Condition: Malfunctioned
Location: Lt Wing
Stage of operation: NR
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

AIRCRAFT WAS GROUNDED: UNWANTED FUEL TRANSFER LEFT WING TO CENTER. NOTED THAT WITH ALL PUMPS ON AND CROSSFEED CLOSED THE LEFT WING FUEL INDICATED 7.85,CENTER .30 AND RIGHT WING 8.63.**SUPPLEMENTAL REPORT FOR (AALA202401233069): ACCOMPLISHED FIM 28-21-00-810-803 STEP A TO C-8 OPEN CENTER TANK SUMP DRAIN FOR 1 HOUR, NO DRIPS NOTED. OPERATED LEFTHAND FORWARD & LEFTHAND AFT BOOST PUMP FOR 1 HOUR, NO DRIPS NOTED. BALANCED FUEL LEFT HAND AND RIGHT HAND WING. NO FAULT FOUND**(CLOSED).