Shier Aviation Corp

Part 135 operator · designator IVSA

Data confidence: All records on this page are linked by a shared certificate number or aircraft registration (N-number).

Also recorded as: CORPORATE HELICOPTERS, SHIER AVIATION CORP, Shier Aviation Corp

Accident & enforcement record

Events that happened, regardless of the operator's own reporting. Each links to its public source.

NTSB accidents & incidents

No NTSB accidents or incidents linked to this operator.

FAA enforcement actions

No FAA enforcement actions linked to this operator.

Maintenance disclosure history

Service Difficulty Reports are self-reported maintenance findings. The NUMBER of reports is not a measure of reliability — diligent operators file more, not fewer. These are shown for transparency, not as a negative signal. To verify a report, search its control number at the FAA SDRS site.

Reports span 1996–2014. Most-reported systems: Fuselage (53) — 11; Main rotor drive (63) — 5; Lights (33) — 4; Fire protection (26) — 1; Flight controls (27) — 1 (top 5 of 8 systems, covering 22 of 25 coded reports). Most-common natures of condition, as filed: OTHER — 18; NO TEST — 3; WARNING INDICATION — 2; FALSE WARNING — 1; FLUID LOSS; SMOKE/FUMES/ODORS/SPARKS — 1.

25 reports on file.

FLUID LOSS; SMOKE/FUMES/ODORS/SPARKS · 2014-07-14 Matched by certificate designator
N491SA · ATA 8530

Part: BAFFLE — CRACKED (ZONE 100) · airframe 1,599 hrs · 1,598 cycles

BAFFLING THAT SEPARATES THE OIL COOLER AND THE NR 2 CYLINDER, CRACKED AND SEPARATED. IT CAME TO REST ON THE STARTER POSITIVE TERMINAL AND NR 2 CYLINDER ROCKER BOX OIL RETURN LINE, PN 72703. WHEN THE STARTER WAS ENGAGED THE ELECTRICAL CURRENT ARCED THROUGH THE SHEET METAL BAFFLE TO THE OIL RETURN LINE SEVERING THE ALUMINUM TUBING. LOSS OF ENGINE OIL PRESSURE OCCURRED DURING START ACCOMPANIED BY SMOKE. OIL SPILLED TO THE GROUND BELOW THE ACFT.

Source: SDR FAA2014071400132
OTHER · 2002-05-07 Matched by certificate designator
NHP145 · ATA 6310

Part: ACTUATOR — DEFECTIVE (CLUTCH) · airframe 948 hrs

CLUTCH ACTUATOR MOTOR FAILED. (4TH TIME)

Source: SDR IVSA078654
WARNING INDICATION · 2002-04-09 Matched by certificate designator
N7101J · ATA 6310

Part: BELT — STRETCHED (ENG TO ROTOR) · airframe 695 hrs

BELTS WERE REPLACED DURING 100HR INSPECTION AFTER 693.3 HOURS TSI. FAN WHEEL WAS BALANCED AND RUNUP WAS NORMAL. FIRST FLIGHT OF APPROXIMATELY 2 HOURS WAS UNEVENTFUL. DURING SECOND FLIGHT PILOT REPORTED CLUTCH LIGHT FLICKERED ON AND OFF SEVERAL TIMES. ON INSPECTION AFTER PRECAUTIONARY LANDING, BELTS WERE FOUND STRETCHED TO THE POINT THAT OVER LIMIT SWITCH DEACTIVATED THE SYSTEM. SYSTEM INSPECTED WITH NO FAULTS FOUND OTHER THAN BELT STRETCH BEYOND LIMITS. NEW BELTS WERE INSTALLED AND ADJUSTED. FAN WHEEL BALANCE CHECKED.

Source: SDR IVSA078430
OTHER · 2002-01-23 Matched by certificate designator
NHP145 · ATA 7600

Part: GOVERNOR — DEFECTIVE (ENGINE) · airframe 592 hrs

GOVERNOR MOTOR RUNS SLOWLY, TAKING 10-12 SECONDS TO BRING RPM UP TO FLIGHT RPM REPLACEMENT MOTOR INSTALLED, DEFECTIVE UNIT RETURNED TO ROBINSON FOR WARRANTY EXCHANGE OR REPAIR.

Source: SDR IVSA077688
OTHER · 2001-12-12 Matched by certificate designator
N7186Z · ATA 6300

Part: WHEEL — CORRODED (CENTER HUB) · airframe 190 hrs

PAINT ON FAN WHEEL LOOSE AND FLAKING OFF DUE TO POOR ADHESION, PROBABLY CAUSED BY IMPROPER PREPARATION, ALLOWING PREMATURE CORROSION.

Source: SDR IVSA077371
OTHER · 2001-10-03 Matched by certificate designator
N335FP · ATA 6210

Part: BLADE — CRACKED (MAIN ROTOR) · airframe 5,031 hrs

BLADE REMOVED FOR REPAIR OF LEADING EDGE ABRASION STRIP CRACKS. CUSTOMER REQUESTED EXCHANGE BLADE IN ORDER TO RESUME FLIGHTS. EXCHANGE BLADE INSTALLED, REPAIRABLE BLADE RETURNED TO AEC

Source: SDR IVSA076105
OTHER · 2001-09-24 Matched by certificate designator
N7189C · ATA 6320

Part: ACTUATOR — FAILED (CLUTCH) · airframe 248 hrs

CLUTCH ACTUATOR MOTOR FAILED FOR THE 2ND TIME. REPLACEMENT MOTOR INSTALLED. FURTHER TOUBLESHOOTING REVEALED SHEAVE ALIGNMENT OUT OF LIMITS CAUSING INFLIGHT ILLUMINATION OF CLUTCH LIGHT. ALIGNMENT CORRECTED AND FLIGHTS CONTINUED NORMALLY. BAD MOTOR RETURNED FOR WARRANTY CREDIT.

Source: SDR IVSA075920
OTHER · 2001-08-31 Matched by certificate designator
NUNK · ATA 6310

Part: ACTUATOR — DEFECTIVE (CLUTCH) · airframe 76 hrs

MOTOR FAILED TO OPERATE WHEN CALLED ON TO ENGAGE M/R DRIVE BELTS. WOULD NOT OPERATE IN EITHER DIRECTION. MOTOR REPLACED, DEFECTIVE MOTOR RETURNED TOROBINSON FOR WARRANTY CREDIT.

Source: SDR IVSA075461
OTHER · 2001-08-06 Matched by certificate designator
N166DL · ATA 3340

Part: MODULE — BURNED OUT (LIGHT) · airframe 226 hrs

PILOT REPORTED ANTI COLLISION LIGHT INOP. FLASH TUBE FOUND BURNED AND CRACKED. REPLACEMENT TUBE ORDERED AND INSTALLED. OPS CHECKED OK.

Source: SDR IVSA074819
NO TEST · 1998-08-05 Matched by certificate designator
N491SA · ATA 3350

Part: LIGHT — LOOSE (CABIN)

THE FIRST CLASS AND FWD SECTION OF COACH HAD EGRESS LIGHTING INOPERATIVE. FOUND POWER FEEDER LEAD LOOSE. RESECURED CONNECTOR. CHECK-C 3-12-98 STL.

Source: SDR TWAA9812701
OTHER · 1998-06-23 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - ON LT Z14 RADIAL OTBD LOWER HOLE ON THE FORWARD SIDE, A .25 INCH CRACK WAS INDICATED BY EDDY CURRENT IN THE ATTACH ANGLE. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810310
OTHER · 1998-06-21 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - THE RT Z34 RADIAL OUTBOARD LOWER HOLE ON FORWARD SIDE SHOWED CRACK INDICATION BY EDDY CURRENT. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810306
OTHER · 1998-06-21 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - THE RT Z34 RADIAL WAS CRACKED ON END ABOUT 1 INCH. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810307
OTHER · 1998-06-21 Matched by certificate designator
N491SA · ATA 5320

Part: FITTING — CRACKED (FUSELAGE)

STL - FOUND UPPER END FITTING ON AFT PRESSURE BULKHEAD RT Z34 RADIAL CRACKED .1250 INCH AT TEE FITTING. REPAIRED PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810308
OTHER · 1998-06-21 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - FOUND LT Z14 RADIAL OTBD UPPER HOLE ON THE FORWARD SIDE WITH .3750 INCH CRACK INDICATION BY EDDY CURRENT. REMOVED AND REPLACED END CLIP PER SRM 51-30-5, AND ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810309
OTHER · 1998-06-20 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - THE LT Z24 RADIAL, UPPER INBD HOLE ON THE FORWARD SIDE SHOWED CRACK INDICATION BY EDDY CURRENT. REMOVED AND REPLACED FITTING PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810305
OTHER · 1998-06-20 Matched by certificate designator
N491SA · ATA 5312

Part: BULKHEAD SKIN — CRACKED (FUSELAGE)

STL - FOUND BULKHEAD SKIN CRACKED .25 INCH AT LT BULKHEAD AT Z24L, ON OTBD TOP SIDE, SECOND HOLE FORM END. REPAIRED SKIN PER ARA 15189. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810312
OTHER · 1998-06-20 Matched by certificate designator
N491SA · ATA 5312

Part: BULKHD FITTING — CRACKED (AFT PRESS BLKHD)

STL - THE UPPER END FITTING ON AFT PRESSURE BULKHEAD LT Z24 RIB WAS CRACKED AT TEE FITTING. REMOVED AND REPLACED END FITTING PER ARA 15188. CHECK-C 3-12-98 STL. (X)

Source: SDR TWAA9810315
OTHER · 1998-06-19 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - ON THE LT Z34 RADIAL UPPER OTBD HOLE ON THE FORWARD SIDE, A CRACK INDICATION WAS SHOWN BY EDDY CURRENT. REPAIRED PER TWA ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810311
OTHER · 1998-06-18 Matched by certificate designator
N491SA · ATA 5311

Part: FRAME — CRACKED (FUSELAGE)

STL - THE Z48 RADIAL FORMER RT SIDE WAS FOUND CRACKED 1 INCH LONG ON OTBD END. REPAIRED FORMER PER ARA 15188. CHECK-C 3-12-98 STL. ACFT TT: 66,639 HOURS. ACFT TC: 80,202. (X)

Source: SDR TWAA9810313
OTHER · 1998-06-18 Matched by certificate designator
N491SA · ATA 5312

Part: BULKHD FITTING — CRACKED (AFT PRESS BLKHD)

STL - THE LOWER END FITTING ON AFT PRESSURE BULKHEAD LT Z34 RIB HAD A .3750 INCH CRACK AT TEE FITTING. REPAIRED PER TWA ARA 15188. CHECK-C 3-12-98 STL. (X)

Source: SDR TWAA9810314
NO TEST · 1998-05-29 Matched by certificate designator
N491SA · ATA 3350

Part: BATTERY PACK — DISCHARGED (CABIN)

STL - FLT 404 - EMERGENCY EXIT SIGNS AT R1 AND L1 DOORS CAME ON IN FLIGHT. WOULD NOT RESET UNTIL SHORT FINAL. REPLACED FWD EMERGENCY EXIT SIGN BATTERY PACK. (M)

Source: SDR TWAA9808603
FALSE WARNING · 1997-12-01 Matched by certificate designator
N491SA · ATA 2612

Part: FIRE LOOP — FAILED (RT ENGINE)

MCI - FLT 588 - DURING FLIGHT, RIGHT ENGINE FIRE WARNING LIGHT FLICKERED. REPLACED THE LOWER FIRE DETECTOR LOOP ASSY. (M)

Source: SDR TWAA9714102
WARNING INDICATION · 1997-11-21 Matched by certificate designator
N491SA · ATA 2750

Part: RETRACT MECH — MALFUNCTIONED (TE FLAPS)

STL - FLT 218 - AT 14,000 DURING DESCENT INTO STL, FLAPS UNCOMMANDED DEPLOYED TOWARD 10DGR AT 300 KTS, WITHIN 5 SECONDS WERE PLACED TO UP. ACCOMPLISHED CHECKS PER MM 5-51-0 PAGE 609 SECTION D FOUND OK FOR SERVICE. (M)

Source: SDR TWAA9713701
NO TEST · 1996-05-15 Matched by certificate designator
N491SA · ATA 3350

Part: BATTERY PACK — DISCHARGED (CABIN)

STL - FLT 619 - DURING PRE-FLIGHT, EMERGENCY LIGHTS AND EGRESS LIGHTS WOULD NOT ILLUMINATE. FOUND SWITCH HAD BEEN LEFT IN THE ON POSITION. REPLACED BATTERY POWER PACKS, MFG PN 5822-2 AND VR4D. EMERGENCY LIGHTS AND EGRESS LIGHT SYSTEM OPERATION CHECKED NORMAL. CHECK C - 5-22-95 - STL. (X)

Source: SDR 96ZZZX3023

Linked aircraft

N-numberMake / modelYearStatusLink basis
N491SAROBINSON HELICOPTER COMPANY R44 II2009Valid RegistrationMatched by certificate designator
N543SABELL 206BValid RegistrationMatched by certificate designator
N545SABELL 206L-31983Valid RegistrationMatched by certificate designator
N547SAAEROSPATIALE AS350B21988Valid RegistrationMatched by certificate designator
N549SAMatched by certificate designator
N892SAROBINSON HELICOPTER COMPANY R44 II2014Valid RegistrationMatched by certificate designator

Aircraft with earlier records under this certificate

Maintenance and accident records on this page also cover aircraft that are not in this operator's current FAA fleet list. Charter and management fleets change — owners switch management companies, sell, or export aircraft. Where the registry shows what became of a tail, it is noted below.

  • NHP145 — records 2002 · no longer on the FAA registry
  • N7101J (ROBINSON HELICOPTER R22 BETA) — records 2002 · registered to ALTUS AVIATION MANAGEMENT (owner ≠ operator)
  • N7186Z — records 2001 · no longer on the FAA registry
  • N335FP — records 2001 · no longer on the FAA registry
  • N7189C — records 2001 · no longer on the FAA registry
  • NUNK — records 2001 · no longer on the FAA registry
  • N166DL (ROBINSON HELICOPTER CO R66) — records 2001 · registered to B-LINE AIR LLC (owner ≠ operator)