Service difficulty report · Gasket · Boeing 737990ER

Difficulty date
May 5, 2024
Submitted
May 9, 2024
Operation
Air carrier
Aircraft
N251AK
Make and model
Boeing 737990ER
Aircraft serial
62470
Aircraft time
28,476 hours, 9,226 cycles
Engine
Cfmint CFM567B27
Engine time
28,476 hours, 9,226 cycles
Part
Gasket
Part number
J1215P17
Condition
Damaged
Location
Hmu
Stage of operation
CL
How discovered
O
Nature of condition
X, J
Precautionary procedure
A

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

What was found

#2 ENGINE FAILURE ON DEPARTURE BETWEEN 8-9K FEET. ENG FAIL LIGHT ANNUNCIATED. NO AIRFRAME VIBRATIONS FELT. ATTEMPTED XB-RELIGHT, UNSUCCESSFUL RETURNED TO DEPARTURE AIRPORT FOR OVERWEIGHT LANDING. NO HARD LANDING EXPERIENCE CFT NOTED SLIGHT LEAK OF FUEL NEAR #2 ENGINE ON TAXI. BRAKES REPORTED TO BE SMOKING & NOTED BY GFR@ GATE TEMPS BETWEEN 200-300 DEGREES. GROUNDED - YES. AIR TURNBACK - OPENED FAN COWLS ON RH ENG TO FOM PER AMM 71-11-02. PERFORMED WET MOTOR PER AMM 71-00-00 FOUND LEAK FROM HMU FUEL TUBE PER AMM 73-21-10-400-801-F00 ITEM 33. REMOVED FUEL TUBE AND FOUND GASKET ITEM 34 DAMAGED. FUEL TUBE ITEM 43 REMOVED TO FOM. PERFORMED EEC BITE TEST FOR RECENT FAULTS IAW AMM 73-21-00-740-803-F00. FOUND MSG NBR 73-31552 ON LEG 1 ONLY. C/O OVERWIEGHT LANDING INSPECTION IAW AMM 05-51-35-210-801, AMM 32-11-00-200-801, AND 32-21-00-200-801, NO DEFECTS NOTED. #2 ENG MAIN FUEL PUMP PACKAGE REPLACED (FUEL PUMP & HMU ONLY) REF T/C'S N8473002, N8473003, N847300 & N8473001. OPS AND LEAK CHECK GOOD. NO EEC FAULTS NOTED. REF EA #PWRPL-71EA-26998 FOR ALL OTHER WORK PERFORMED.