Service difficulty report · Boot · Gulstm 560

Difficulty date
March 8, 2023
Submitted
March 8, 2023
Operation
General aviation
Aircraft
N917TL
Make and model
Gulstm 560
Aircraft serial
5600812
Aircraft time
3,956 hours, 5,299 cycles
Part
Boot
Part number
65420022
Part serial
NA
Condition
Torn
Location
Nose Gear
Part time
406 hours, 603 cycles
Stage of operation
TO
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

THE NOSE GEAR DEICE BOOT P.N. 6542002-2 WAS WEDGED BETWEEN THE NOSE GEAR CHROME PISTON P.N. 66452100-2 AND BEARING P.N. 6642307-1 RESULTING IN THE STRUT STAYING COMPRESSES AFTER TAKEOFF AND WHEN THE GEAR WAS RETRACTED THE NOSE GEAR UP LOCK ROLLERS DID NOT ENGAGE WITH THE UP LOCK HOOKS THUS COMING IN CONTACT WITH THE NOSE GEAR DOOR CAUSING DAMAGE. DUE TO THE NOSE GEAR FAILING TO LOCK IN THE UP POSITION THE HYDRAULIC MOTOR CONTINUED TO RUN CAUSING THE BRAKE HYDRAULIC PRESSURE AND THE ANTI SKID ANNUNCIATORS TO ILLUMINATE. ONCE THE NOSE GEAR WAS IN THE DOWN AND LOCKED POSITION WITH A GREEN DOWN AND LOCKED ANNUNCIATOR ILLUMINATED THE HYDRAULIC PUMP WAS ABLE TO BUILD THE PRESSURE REQUIRED TO OPERATE THE BRAKING AND ANTISKID SYSTEM AS REQUIRED AND EXTINGUISH THE BRAKE HYDRAULIC PRESSURE AND THE ANTI SKID ANNUNCIATORS.