# NTSB investigations: Swearingen SA226TC: Airframe/component/system failure/malfunction

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB DEN06IA056](https://openairdocs.org/ntsb/DEN06IA056.md): Swearingen SA226TC · Denver, CO · Incident · No injuries · Incident investigation · Final report · Apr 5, 2006 · N770S · No damage
  > the failure of the elevator down cable due to an improperly routed cable by unknown maintenance personnel. A contributing factor was the improper inspection of the elevator cable by the operator's maintenance personnel.
- [NTSB DEN06IA042](https://openairdocs.org/ntsb/DEN06IA042.md): Swearingen SA226TC · Casper, WY · Incident · No injuries · Incident investigation · Final report · Feb 21, 2006 · N235BA · Minor damage
  > loss of directional control for undetermined reasons. A factor contributing to the incident was the runway maker light.
- [NTSB DEN03LA076](https://openairdocs.org/ntsb/DEN03LA076.md): Swearingen SA226TC · Denver, CO · Accident · No injuries · Limited investigation · Final report · Apr 16, 2003 · N229AM · Substantial damage
  > The failure of the landing gear system and the flight crew's failure to ascertain that the landing gear was down and locked. A contributing factor was the inadequate maintenance inspections performed by maintenance personnel.
- [NTSB CHI97LA266](https://openairdocs.org/ntsb/CHI97LA266.md): Swearingen SA226TC · Des Moines, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 1997 · N224AM · Substantial damage
  > the pilot's improper in-flight planning/decision and failure to perform the emergency procedure for shut-down of the right engine. Factors relating to the accident were: the power lever cable became disconnected from the fuel control unit, due to improper…
- [NTSB CHI89FA092](https://openairdocs.org/ntsb/CHI89FA092.md): Swearingen SA226TC · Marion, IL · Accident · No injuries · Field investigation · Final report · May 19, 1989 · N232AM · Substantial damage
  > Failure of the pilot to maintain directional control of the aircraft. Contributing to the accident was lack of crew coordination and inappropriate remedial action on the part of the aircrew, and improper maintenance modification by the operator.
- [NTSB DEN89FA076](https://openairdocs.org/ntsb/DEN89FA076.md): Swearingen SA226TC · Saint George, UT · Accident · No injuries · Field investigation · Final report · Feb 11, 1989 · N1010Z · Substantial damage
  > Malfunction of the nosewheel steering system due to improper installation of the nosewheel steering poppet valve & inadequate maintenance instructions.
- [NTSB MKC88LA167](https://openairdocs.org/ntsb/MKC88LA167.md): Swearingen SA-226 · Emporia, KS · Accident · Serious injuries · Limited investigation · Final report · Sep 1, 1988 · N257AM · Minor damage
  > While cruising at 17,000 ft, the 1st officer's rgt window panel failed & blew outward. A cabin decompression occurred & the copilot was seriously injured. The captain immediately descended to 10,000 ft & continued to their destination where an otherwise…
- [NTSB CHI88FA205](https://openairdocs.org/ntsb/CHI88FA205.md): Fairchild SA-226-TC · Cleveland, OH · Accident · Minor injuries · Field investigation · Final report · Aug 16, 1988 · N322BA · Substantial damage
  > The captain's late decision to abort after a propeller linkage failure on the right engine and the co-pilot's failure to relinquish engine and braking authority to the captain resulting in confusion and inadequate braking to stop on the runway after the abort.
- [NTSB CHI88IA141](https://openairdocs.org/ntsb/CHI88IA141.md): Swearingen SA226-TC · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jun 22, 1988 · N329BA · No damage
  > Failure of the front motor bearing in the sas servo motor assembly, and the resultant 'jamming' of the elevator control cables. The pilot aborted the takeoff as a result of the vibration in the yoke.
- [NTSB DEN87IA032](https://openairdocs.org/ntsb/DEN87IA032.md): Swearingen SA226TC · Billings, MT · Incident · No injuries · Incident investigation · Final report · Dec 20, 1986 · N124AV · Minor damage
  > N124AV was operating as big sky airlines flt 3857, scheduled service from helena to Billings. The flt proceeded uneventfully until the apch into Billings. The flt crew stated after the incident that when the landing gear was extended, the left main gear…
- [NTSB MKC86FA059](https://openairdocs.org/ntsb/MKC86FA059.md): Swearingen SA226TC · Kansas City, MO · Accident · No injuries · Field investigation · Final report · Feb 15, 1986 · N252AM · Substantial damage
  > During a climb to cruise, the pilot-in-command declared an emergency & requested to dscnd & return to the arpt. The landing was uneventful. An exam of the left prop revealed that 1 of its 3 blades had failed at the butt end & had separated. Subsequently, the…
- [NTSB LAX85FA373](https://openairdocs.org/ntsb/LAX85FA373.md): Swearingen SA226TC Metro II · Fresno, CA · Accident · Minor injuries · Field investigation · Final report · Aug 27, 1985 · N139WW · Substantial damage
  > While in cruise flight at 16,000 feet one of the three propeller blades separated at the shank. The unbalanced condition twisted the eng from its mounts and into the fuselage. The cabin was punctured and rapid decompression followed. The crew was able to…
- [NTSB CHI85IA160](https://openairdocs.org/ntsb/CHI85IA160.md): Swearingen SA226TC · Dayton, OH · Incident · No injuries · Incident investigation · Final report · Apr 10, 1985 · N163MA · No damage
  > On short final at an airspeed bet 120 and 125 KTS full flaps were lowered for landing. When the flaps reached the full down position, the stall warning horn came on and the stick pusher on the rosemont stall avoidance system activated. The captain disengaged…
- [NTSB MKC85IA045](https://openairdocs.org/ntsb/MKC85IA045.md): Swearingen SA226TC · St. Louis, MO · Incident · No injuries · Incident investigation · Final report · Jan 4, 1985 · N322BA · No damage
  > After departing st Louis and reaching cruise flt the crew experienced a continual trim pitch-up which had to be relieved by a reduced airspeed. No aural indication was noted by the crew. The return to the airport was uneventful. Follow-up inspection of the…
- [NTSB FTW85IA028](https://openairdocs.org/ntsb/FTW85IA028.md): Swearingen SA226TC · Tulsa, OK · Incident · No injuries · Incident investigation · Final report · Oct 26, 1984 · N511SS · Minor damage
  > During cruise, the crew experienced a loss of hydraulic pressure & smoke in the cockpit, then donned their oxygen masks. They used the emerg gear extension system & made a safe emerg landing. An exam revealed a cracked 2000 PSI aluminum hydraulic line had…
- [NTSB MKC84IA185](https://openairdocs.org/ntsb/MKC84IA185.md): Swearingen SA226TC · Joplin, MO · Incident · No injuries · Incident investigation · Final report · Jun 27, 1984 · N233AM · Minor damage
  > While taxiing to takeoff & on the takeoff roll, the left brake overheated. Ten to fifteen mins after departure both tires on the left main landing gear exploded. The bearings and brakes also seized due to the high temperatures. Upon arrival at the dest, the…
- [NTSB DEN84IA157](https://openairdocs.org/ntsb/DEN84IA157.md): Swearingen SA226TC · Albuquerque, NM · Incident · No injuries · Incident investigation · Final report · May 24, 1984 · N237AM · Minor damage
  > When gear was lowered for landing rt main gear would not extend although persons on the ground stated the gear doors appeared open. Remedial action by the flt crew did not rectify the situation and a gear up landing was performed. When acft was raised from…
- [NTSB CHI84IA155](https://openairdocs.org/ntsb/CHI84IA155.md): Swearingen SA226TC · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Apr 16, 1984 · N163MA · Minor damage
  > A gear up landing was performed after the crew was unable to extend the rgt main gear thru normal & emerg procedures. An exam of the acft disclosed the rgt main gear door aft hinge bolt was slightly bent & difficult to rotate in its bushing. The bushing &…
- [NTSB ATL83LA080](https://openairdocs.org/ntsb/ATL83LA080.md): Swearingen SA-226TC · Laurel, MS · Accident · No injuries · Limited investigation · Final report · Jan 2, 1983 · N5291M · Substantial damage
  > At 11,000 ft MSL during cruise a prop separated from the left eng. The eng was feathered & the plt observed the eng displaced inboard & downward. An emergency landing was made & upon landing the left main gear was found to be retracted. The acft slid to a…
- [NTSB MKC82FA149](https://openairdocs.org/ntsb/MKC82FA149.md): Swearingen SA226TC · Kansas City, MO · Accident · No injuries · Field investigation · Final report · Aug 20, 1982 · N237AM · Substantial damage
  > During the approach to topeka the crew was unable to extend the left gear. The crew diverted to Kansas City, and after many unsuccessful attempts to lower the left gear elected to land wheels-up. The left main gear was jammed into the geardoors. The aft hinge…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8780404')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8780404&occurrence=130

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
