Service difficulty report · Engine · Bombdr BD1001A10

Difficulty date
December 12, 2025
Submitted
December 15, 2025
Operation
Air carrier
Aircraft
N706QS
Make and model
Bombdr BD1001A10
Aircraft serial
20812
Aircraft time
7,237 hours, 4,223 cycles
Engine
Hnywl AS90721A
Part
Engine
Part number
700407022
Part serial
P136248
Condition
Sparks
Location
Left
Stage of operation
TO
How discovered
O
Nature of condition
B, E
Precautionary procedure
C, E

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

What was found

DURING TAKEOFF ROLL AT APPROX 80KTS FELT ACFT YAW TO LT & SHAKING. ABORTED TAKEOFF. EXITED THE RUNWAY, GOT A RED LT ENGINE EXCEEDANCE CAS MESSAGE. ATC TOLD US HE SAW SPARKS COMING OUT OF ENG. STARTED APPROPRIATE CHKLST GOT LT ENG FLAME OUT CAS MESSAGE. SAW LT ITT GO AS HIGH AS 1235. VISUAL INSP SHOWED NO DAMAGE OR FLUID LEAKS. ACFT ROLS SHOWED BOTH ENGS NORMAL OIL LEVELS. LT ENG HIGH ITT & EXCEEDANCE. COMPLETED GENERAL VISUAL INSP OF LT ENG, FOUND EXHAUST LPT BLADES DAMAGED & DEBRIS IN EXHAUST. INSTALLED ENG S/N P145439 TO NR 1 IAW LMM 72-05-22 & BD-100 AMM 71-00-01-400-801. SERVICED ENG & ATS WITH OIL. IAW LMM 72-05-22 & AMM 71-00-01-400-801. . ALL POST INSTALLATION RUNS & LEAK CHKS PERFORMED.