Service difficulty report · Shim

Difficulty date
August 14, 2026
Submitted
August 14, 2026
Operation
General aviation
Part
Shim
Condition
Missing
Location
Fuel Nozzel
Stage of operation
IN
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

REFERENCE SAE RETEX – EQ6349 DURING A REVIEW OF THE ASSEMBLY PROCESS PERFORMED BY FUEL NOZZLE SUPPLIER, HAS FOUND NOZZLES THAT REQUIRE ATTENTION DUE TO AN ERROR IN THE VALVE ASSEMBLY PROCESS CONFIRMED THROUGH AN EVALUATION OF X-RAY IMAGES. S/N CONCERNED: PAT0B224 / PSDMF856 / PAT3C375 / PSDMD535 / PSDMP851 / PSDNE267 / PSDKE030 / PAT2A176 / PAT184H5 AND PAT948P7 / PAT0042T FUEL NOZZLE P/N: 6120066E05 AND 6120066E02 AFFECTED ENGINE TYPE: LEAP 1A AND LEAP 1B BASED ON THE MANUFACTURER’S DATA, VERIFICATION CONFIRMED THAT TWO OF THE AFFECTED FUEL NOZZLES WERE DELIVERED TO SIAEC/ESD/AES AND INSTALLED ON THE FOLLOWING ENGINES: 1. AIR INDIA-ESN 599980 FUEL NOZZLE LOCATION #16 – SN: PAT184H5, PN: 6120066E05 / 2085M31G05 2. INDIGO-ESN 59B153 FUEL NOZZLE LOCATION #4 – SN: PAT0042T, PN: 6120066E05 / 2085M31G05 THE AFFECTED CUSTOMERS HAVE BEEN INFORMED TO REPLACE THE RELEVANT FUEL NOZZLES AND TO CONTACT SAE/CFM FOR FURTHER DETAILS. ACTUAL OR APPARENT CAUSE SHIM INSTALLATION WAS MISSED DURING THE FUEL NOZZLE ASSEMBLY.