Service difficulty report · Hmu · Boeing 737823

Difficulty date
September 13, 2026
Submitted
September 17, 2026
Operation
Air carrier
Aircraft
N807NN
Make and model
Boeing 737823
Aircraft serial
31077
Aircraft time
49,426 hours, 20,975 cycles
Engine
Cfmint CFM567B243
Part
Hmu
Part number
442653
Part serial
BECW7203
Condition
Inoperative
Location
Nr 2 Engine
Part time
44,685 hours, 19,063 cycles
Stage of operation
AP
How discovered
O
Nature of condition
R, X, J
Precautionary procedure
E, A

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

What was found

AIRCRAFT WAS GROUNDED: NR 2 ENGINE FAIL AT 1200 FEET ON FINAL TO RW01L. DUE TO RIGHT ENGINE IN FLIGHT SHUTDOWN INTO CLT, VERIFY RIGHT FUEL TANK FUEL QTY VIA FUEL MEASURING STICKS. ALL READINGS ARE THE MINIMUM AT 2. CONFERRED WITH MOC AND DETERMINED THAT THE RT WING FUEL LEVEL IS UNREADABLY LOW AT THIS TIME. LT WING IS SHOWING 3.86 AND CENTER AT 0. MAINTENANCE REPLACED HMU AND FUEL PUMP AT NR 2 ENG IAW AMM 73-34-01.