Service difficulty report · Cable · Cessna 560XL

Difficulty date
May 31, 2022
Submitted
June 6, 2022
Operation
Air carrier
Aircraft
N657QS
Make and model
Cessna 560XL
Aircraft serial
5605636
Aircraft time
13,930 hours, 10,746 cycles
Part
Cable
Part number
666000250
Condition
Defective
Location
Zone 100
Stage of operation
CL
How discovered
V
Nature of condition
F
Precautionary procedure
A

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

What was found

PRIMARY TRIM: BOTH MANUAL AND ELECTRIC ELEVATOR TRIM INOP. TRIM WHEEL MOVES EASILY BUT DOES NOT AFFECT THE TRIM TAB ON THE HORIZONTAL STABILIZER. LARGE NOSE DOWN FORCE FELT SHORTLY AFTER TAKEOFF. BOTH PILOTS WERE REQUIRED TO CONTROL AIRCRAFT PITCH. INED ACCESS TO ELEV, TR1M CABLES AND SERVO. ABOVE BAGGAGE AREA, REMOVED PULLEYS AND PULLEY C.ABLE KEEPER PINS FOR ACCESS TO ATT. L/H AND R/H ELEV. TRIM CATILES. REMOVED OLD L/H AND R/H ART C.1BLES AND RAN NEW CABLE. VISUALLY INSPECTED CABLE RUN TOR PROPER ROUTING. ALL WORK PERFORMED PER CE560XL AMM 27· 32·02 VENFLED CABLE RUNS WITH BOROSCOPE, ALL RUNS CHECKED GOOD. PUT PRELIMINARY TENSION ON CABLES AND CHECKED MRUN A SECOND TIME, CHECKED GOOD. INSTALLED NEW CABLE KEEPERS AND PULLEYS ON AFT CABLES. PUT FINAL TENSIONS ON CABLES. FOUND ELECTNC TRIM ACTUATOR CABLE BIRD NESTED ON SERVO DRUM. RECTIFIED TANGLE AND FOUND CABLE TO BE STRETCHED TO THE POINT THAT RIGGING TENSION COULD NOT BE ACHIEVED BEFORE BOTTOMING OUT TURNBUCKLE THREADS. NOTIFIED MCC THAT THE ELEC. ACT. CABLE REQUIRES REPLACING. VENFLED AFT. CABLE TENSION ,AND RAN THROUGH TRAVEL MECHANICALLY. MECHANICAL THROWS ARE GOOD AT 15 DEG. AND 5 DEG. VENNED FORWARD CABLE RUN LS GOOD UP TO CONTROL HEAD UNDER PEDESTAL. ALL WORK PERFORMED PER CE560XL AMM 27· 32·02 AND 27-31·00 REMOVED AND REPLACED ELEV. ELECTRONIC TNM ACT. CABLE PER CE560XL AMM 27-32·04 AND 27·32-02. REF. ITEM 2.2. PERFORMED ELEV. ELECTRONIC TNM ACT. ADJ. TEST PER CE560XL AMM 27-32-00, OPS CHECKS GOOD. TENSIONMETER GYH-2320 CAL DUE 4/22/23

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