SDR UIEA2026030100070

Service difficulty report · A/C Pack · Boeing 777F16

Difficulty date: March 1, 2026
Submitted: March 2, 2026
Operation: Air carrier
Aircraft: N703GT
Make and model: Boeing 777F16
Aircraft serial: 41518
Aircraft time: 63,313 hours, 8,723 cycles
System (JASC): 2120 · Air Distribution System
Part: A/C Pack
Condition: Odor
Location: Zone 200
Stage of operation: DE
How discovered: O
Nature of condition: B
Precautionary procedure: O

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

What was found

DESCENDING THROUGH 10500 FEET, STRONG OIL TYPE SMELL IN BLEED AIR AIR CONDITIONING SYSTEM, STRONGER IN COCKPIT(<P>T/S OIL SMELL IN CABIN IAW B777 FIM 21-00 TASK 808, NO SMOKE OR OIL SMELL FOUND. PERFORMED HIGH POWER RUNS FOR BOTH ENGINES IAW B777 AMM 71-00-00, NO SMOKE OR OIL SMELL OBSERVED DURING ENGINE OPERATION.

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