N175AL
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
No NTSB accidents or incidents on file for this aircraft.
Maintenance disclosures
Service Difficulty Reports filed with the FAA for this airframe. Filing is largely voluntary — the number of reports is not a measure of reliability. To verify a report, search its control number at the FAA SDRS site.
19 reports on file, 1995-05-22 – 2013-07-08.
Part: MAST — MISMANUFACTURED (MAIN ROTOR) · airframe 24,024 hrs · 12,549 cycles
MAST POLE MFG INCORRECTLY. SCALLOP FOR DRIVE LINK THROUGH BOLT MACHINED IN WRONG LOCATION.
Earlier reports · 1995–2005 · 18 reports
2005
Part: ACTUATOR — OUT OF ADJUST (ENGINE)
ON TAKEOFF, RPM ROSE TO 104 PERCENT, THE PILOT WAS UNABLE TO BEEP DOWN TO NORMAL RANGE, RETURNED TO DEPARTURE. THE MECHANIC FOUND THE LINEAR ACTUATOR RANGE WAS SET TOO HIGH, HE ADJUSTED THE BEEP RANGE TO WITHIN THE LIMITS AND THE AC WAS RETURNED TO SERVICE. (K)
Part: BEARING — FAILED (TRANSMISSION) · airframe 15,165 hrs
TRANSMISSION ASSY MAKING METAL, DISASSEMBLED AND FOUND DUPLEX BEARING BREAKING DOWN. REMOVED AND REPLACED DUPLEX BEARING.
Part: TRANSMISSION — FAILED (MAIN ROTOR)
TRANSMISSION CHIP LIGHT ILLUMINATED IN HOVER. MAINTENANCE REMOVED TRANSMISSION, MAST, AND OIL COOLER. A SERVICEABLE TRANSMISSION, MAST AND OIL COOLER WERE INSTALLED. FLUSHED TRANSMISSION OIL SYSTEM. IAW MM. GROUND AND LEAK CHECK, OK. (K)
2004
Part: BLADE — DEBONDED (MAIN ROTOR) · airframe 13,465 hrs
LOWER SURFACE OB GRIP FINGER DOUBLER DEBONDED. FOUND CORROSION BETWEEN SKIN AND SPAR. REPLACED UNIT W/NEW BLADE.
Part: BLADE — CORRODED (MAIN ROTOR)
MAIN ROTOR BLADE TRAILING EDGE EXTRUSION EXFOLIATED AT STA. 98 AND 130. DAMAGE IS CONSIDERED A MATERIAL DEFECT.
1998
Part: HINGE — WORN (FAIRING)
DURING ROUTINE INSPECTION, FOUND T/R GEARBOX FAIRING HINGE WORN, FILLER DOOR MISSING. THE FILLER DOOR HAD CONTACTED ONE TAIL ROTOR BLADE. THIS BLADE WAS FOUND UNSERVICEABLE. TAIL ROTOR HUB BLADE ASSY WAS REPLACED. AIRCRAFT WAS VISUALLY INSPECTED AND RETURNED TO SERVICE.
1996
Part: LEVER ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BEARINGS AND SPACERS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-01 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH NAS6605D64 BOLTS. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 310.3 HOURS.
Part: LINK IDLER — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. SUBMITTER STATED NORMAL USE CAUSED PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 322.7.
Part: LEVER ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. SUBMITTER STATED NORMAL USE CAUSED PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 322.7
Part: LEVER ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, AND 1 EACH 206-010-470-101 BEARING. SUSPECT NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT, 382.3 HOURS.
Part: LINK IDLER — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, AND 1 EACH 206-010-470-101 BEARING. SUSPECT NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT, 382.3 HOURS.
1995
Part: PITCH HORN — LOOSE STUD (T/R BLADE)
DURING DAILY INSPECTION, FOUND THE PITCH LINK STUD ON THE PITCH HORN WAS LOOSE. SUSPECT CAUSE IS THE STUD WAS NOT PERMANENTLY SECURED AT THE FACTORY. ALSO, THE PITCH HORN WAS NOT PROPERLY TORQUED AT THE FACTORY CAUSING THE PITCH HORN TO BECOME LOOSE ON THE TAIL ROTOR BLADE.
Part: LEVER ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 480.8 HOURS.
Part: LINK IDLER — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 480.8 HOURS.
Part: LINK IDLER — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH, 206-010-338-001, SPACERS, 4 EACH, 206-010-337-001, BEARINGS, 2 EACH, 206-010-338-003, BUSHINGS, 2 EACH, NAS6605D64, BOLTS, 1 EACH, 206-010-470-101, BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 410.6.
Part: LEVER ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH, 206-010-338-001, SPACERS, 4 EACH, 206-010-337-001, BEARINGS, 2 EACH, 206-010-338-003, BUSHINGS, 2 EACH, NAS6605D64, BOLTS, 1 EACH, 206-010-470-101, BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. WORN PARTS TT 410.6.
Part: LINK IDLER — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS 6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. TT ON WORN PARTS 309.1 HOURS.
Part: LINK ASSY — WORN (PYLON)
DAILY INSPECTION FOUND BUSHINGS AND BEARINGS WORN BEYOND LIMITS. PARTS REQUIRING REPLACEMENT: 4 EACH 206-010-338-001 SPACERS, 4 EACH 206-010-337-001 BEARINGS, 2 EACH 206-010-338-003 BUSHINGS, 2 EACH NAS 6605D64 BOLTS, 1 EACH 206-010-470-101 BEARING. NORMAL USE CAUSES PARTS TO WEAR OUT TOO SOON. TT ON WORN PARTS 309.1 HOURS.