Service difficulty report · Pressure Switch · Cndair CL6002C10

Difficulty date
June 12, 2022
Submitted
June 15, 2022
Operation
Air carrier
Aircraft
N520DC
Make and model
Cndair CL6002C10
Aircraft serial
10140
Aircraft time
42,537 hours, 31,610 cycles
Part
Pressure Switch
Part number
9670081
Condition
Bent
Location
100
Stage of operation
TO
How discovered
V
Nature of condition
J
Precautionary procedure
A, D

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

What was found

JUST AFTER TAKEOFF AT FL500 CREW GOT NWS MESSAGE AND THEY CONTINUED TO CLIMB TO FL5000. CREW RAN THE QRH AND DECIDED TO RETURN TO FIELD. CREW DECLARED EMERGENCY AND CREW HELD FOR A WHILE TO BRING THE LANDING WEIGHT DOWN BELOW OVERWEIGHT LANDING. AFTER LANDING IN PIT AND COMING TO FULL STOP ON THE RWY CREW TRY TO RESET THE NWS BUT IT WOULD NOT RESET. CREW CALLED FOR TOW TO GATE. TRUCKS ROLLED, NO BRACE IN CABIN LANDED SAFELY AND NO INJURIES. / T/S NWS STEERING INOP PER FIM 32-51-35-810-801 AND 32-51-50-810-801. VERIFIED LANDING GEAR SLECTOR VALVE GOOD PER FIMS 6.A.1.E. DURING FAULT ISOLATION 7.B.M.2 FOUND HYD 3 PRESSURE SWITCH MT129P1 TO HAVE A BENT PIN. SEE NEXT ITEM FOR FURTHER MTX. REMOVED AND REPLACED DAMAGED PRESSURE SWITCH IN ACCORDANCE WITH CRJ AMM 29-34-01-000/400-802-A01. OPS AND LEAK CHECKS GOOD. PERFORMED OPS TEST OF NOSE WHEEL STEERING IN ACCORDANCE WITH CRJ AMM 32-51-00-710-801-A01. OPS TESTS GOOD.