Service difficulty report · Controller · Bombdr DHC8402

Difficulty date
March 18, 2019
Submitted
March 19, 2019
Operation
Air carrier
Aircraft
N431QX
Make and model
Bombdr DHC8402
Aircraft serial
4164
Aircraft time
28,022 hours, 30,040 cycles
Part
Controller
Part number
699018003
Part serial
1496A
Condition
Malfunctioned
Location
Nr 2 Engine
Part time
24,119 hours, 25,646 cycles
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
A

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

What was found

ON TAKE OFF OBSERVED MISMATCHED TORQUE INDICATIONS. NR 2 TRQ WAS SLIGHTLY ABOVE BUG. NR 2 PROP WAS BELOW 1020 @ 980-1000NP. BLEEDS WERE OFF, AUTOFEATHER ARMED NORMALLY UPON SETTING CLIMB POWER @ FLAP RETRACT ALTITUDE. ALL INDICATION NORMAL PER CLIMB SETTINGS NO MASTER CAUTIONS OR OTHER ABNORMALITIES NOTED THRU REMAINDER OF FLIGHT. RETURNED TO FIELD. LANDING UNEVENTFUL. INTERROGATED CDS AND FOUND F/C 158B NR 2 PROP DATED 17-MAR-2019 @ 21:37:45. CLEARED F/C IN CDS AND C/W RUN OF NR 2 ENG. FIRST RUN ACHIEVED 990NP, 2ND 960N/P, WITH BLEEDS OFF. F/C DID NOT RETURN. C/W FIM 61-20-04-810-812 THRU 5A(9). FUNC CH OF TIME TO UNFEATHER AS FOLLOS #1ENG 18SEC, NR 2 17SEC. MANUAL UNFEATHER TIMES 12SEC FOR BOTH ENG. PROP HUB GREASE LEVEL CH GOOD. REPLACED NR 2 PEC PER TASK 61-20-36-000/400-801 THRU STEP 5D OF INSTALL. C/W AMM 61-20-36-400-801 STEP 5E. OPS TEST GOOD. NO FURTHER DEFECTS NOTED. AIRCRAFT RETURNED TO SERVICE.