20250301001929I

Incident · Minor damage

FAA incident report · Boeing B-767-300 · Chicago, IL · March 1, 2025

Date: March 1, 2025 · 09:35 local
Place: Chicago, IL
Airport: Chicago Ohare
Phase of flight: Cruise/Level Flight
Operating rules: Foreign air carrier (Part 129)
Operator: ARNF
Damage: Minor damage
Aircraft: C-GHLV
Reported as: Boeing B-767-300
People aboard: 114
Fatal injuries: 0
Other injuries: 0

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

Crew noted fluctuating N1,N2 EGT indications on LH eng. After thrust reduction for descent, LH eng experienced compressor stall. LH eng reduced to idle. Pan pan declared.

Maintenance actions: troubleshooting per the B767 fim performed with the T25 sensor as well as ecu replaced. No further issues were observed at the subsequent engine run. We also submitted service difficulty report 20250303013 to tcca. Aircraft returned to service.

As the FAA filed it

CREW NOTED FLUCTUATING N1,N2 EGT INDICATIONS ON LH ENG. AFTER THRUST REDUCTION FOR DESCENT, LH ENG EXPERIENCED COMPRESSOR STALL. LH ENG REDUCED TO IDLE. PAN PAN DECLARED.

MAINTENANCE ACTIONS: TROUBLESHOOTING PER THE B767 FIM PERFORMED WITH THE T25 SENSOR AS WELL AS ECU REPLACED. NO FURTHER ISSUES WERE OBSERVED AT THE SUBSEQUENT ENGINE RUN. WE ALSO SUBMITTED SERVICE DIFFICULTY REPORT 20250303013 TO TCCA. AIRCRAFT RETURNED TO SERVICE.