Service difficulty report · Stator Vane · Boeing 7377H4

Difficulty date
July 19, 2026
Submitted
July 24, 2026
Operation
Air carrier
Aircraft
N291WN
Make and model
Boeing 7377H4
Aircraft serial
32539
Aircraft time
58,109 hours, 33,532 cycles
Engine
Cfmint CFM567B242
Part
Stator Vane
Condition
Leaking
Location
Nr 2 Engine
Stage of operation
NR
How discovered
O
Nature of condition
K
Precautionary procedure
O

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

What was found

OTS-#2 ENGINE FUEL LEAK_ REMOVED AND REPLACED THE ENG 2 RH VSV IAW AMM 75-31-01. PERFORMED POWER PLANT TEST IAW AMM 71-00-00 TEST 3A. IDLE LEAK CHECK FAILED. E 202957 C/W RII OF #2 ENG RH VSV INSTALL PER AMM 75-31-01. TEST 3A IDLE LEAK CHECK FAILED. C/W #2 ENGINE RH VSV ACTUATOR LEAK CHECK IAW AMM 75-31-01-790-801-F00. NO LEAKS NOTED. FOUND HEAD-END COUPLING NUT LOOSE RESECURED HEAD-END COUPLING NUT AND VERIFIED INSTALLATION OF ROD END COUPLING NUT SHROUDS AND DRAIN MANIFOLDS REF AMM 75-31-01. NO LEAKS NOTED AND OPS TEST GOOD REF AMM 71-00-00 COMPLIED WITH RII INSPECTION OF THE FOLLOWING ON THE #2 ENGINE RH VSV ACTUATOR: TORQUE AND SECURITY OF INSTALLATION OF THE HEAD/ ROD END NIPPLES/ NUTS AND DRAIN MANIFOLD IAW AMM 75-31-01 AND A VSV ACTUATOR LEAK CHECK IAW AMM 75-31-01. PER AMM 71-00-00: TEST 3A IDLE POWER LEAK CHECK PASSED AND TEST 12 ACTUATORS TEST PASSED.

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