# Incident 19991224036029I: Boeing 737347, Salt Lake City, UT, December 24, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 24, 1999, 14:25 local time
- Place: Salt Lake City, UT
- Airport: Salt Lake City International
- Damage: Minor damage
- Phase of flight: To Init Climb(1st Pwr Reduct)
- Operating rules: Air carrier (Part 121)
- Operator: DALA
- Location: 40.8104° N, 111.9400° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=40.8104&lon=-111.9400&mi=10
- Aircraft: N305WA, a cancelled registration (https://openairdocs.org/deregistered/N305WA-2007-05-04) (OpenAirDocs)
- Registry model: Boeing 737-347 (registry code 138447U, https://openairdocs.org/model/boeing-737-347) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: BOEING 737347
- People aboard: 133
- Fatal injuries: 0
- NTSB investigation: [NTSB DEN00IA032](https://openairdocs.org/ntsb/DEN00IA032) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19991224036029I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) DELTA AIRLINES FLIGHT 1079 DEPARTED SALT LAKE CITY INTL.  AT APPROX. 1425 HOURS LCL AND REPORTED LOOSING A MAIN LANDING GEAR ASSY.  THE AIRCRAFT DUMPTED FUEL AND LANDED WITHOUT INCIDENT AT APPROX. 1630 LOCAL TIME.  DELTA MAINTENANCE PERSONNEL IN SALT LAKE CITY FOUND THAT THE INSIDE BEARING ON THE #3 MAIN TIRE ASSY. HAD THE WRONG PART NUMBER BEARING INSTALLED DURING A TIRE ASSY.  REPLACEMENT IN MCI ON 12/18/1999.  DAMAGE TO THE AIRCRAFT WAS LIMITED TO THE LANDING GEAR AXLE AREA, AND THERE WERE NO INJURIES TO CREW OR PASSENGERS.  DELTA CMO HAS REQUESTED A CHANGE TO DELTA'S PROCEDURES FOR TIRE/WHEEL BUILD-UP. ^PRIVACY DATA OMITTED^                                                                              (.19)  ON DECEMBER 24, 1999, AT 1425 MOUNTAIN STANDARD TIME, A BOEING 737-347, N305WA, OPERATED BY DELTA AIRLINES AS FLIGHT 1079 FROM SALT LAKE CITY, UTAH, TO DETROIT, MICHIGAN, SUSTAINED MINOR DAMAGE WHEN THE RIGHT MAIN OUTBOARD WHEEL ASSEMBLY SEPARATED FROM THE AIRPLANE DURING TAKEOFF FROM SALT LAKE CITY.  THERE WERE NO INJURIES TO THE 6 CREW MEMBERS AND 127 PASSENGERS AND THE AIRCRAFT RETURNED AND LANDED AT SALT LAKE CITY, WITHOUT INCIDENT, AT 1630.  THE FLIGHT WAS OPERAT ING UNDER TITLE 14 CFR PART121 AS A SCHEDULED DOMESTIC PASSENGER FLIGHT AND VISUAL METEOROLOGICAL CONDITIONS PREVAILED. AN IFR FLIGHT PLAN WAS FILED.  ACCORDING TO PRELIMINARY INFORMATION, EXAMINATION OF THE AIRCRAFT FOLLOWING THE EVENT REVEALED THAT A BOEING 757 MAIN WHEEL BEARING HAD BEEN INSTALLED WHEN THE WHEEL WAS BUILT UP BY DELTA MAINTENANCE IN ATLANTA, GEORGIA.  WHEN THE WHEEL SEPARATED FROM THE AIRCRAFT IT STRUCK AND DAMAGED RUNWAY LIGHTING.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN00IA032](https://openairdocs.org/ntsb/DEN00IA032), Dec 24, 1999: Boeing 737-347 (N305WA), Salt Lake City, UT, incident, minor damage. Probable cause: Improper assembly of the wheel during build up in the operator's maintenance facilities.

## Other reports on N305WA (2)

Matched to the same aircraft by N-number and date.

- [Incident 19960408011159I](https://openairdocs.org/incident/19960408011159I), Apr 8, 1996: Boeing 737347 (N305WA), Salt Lake City, UT, Minor damage. Narrative: delta 1691 hit a seagull, runway 34R about 5,000' down on take-off. Delta opted to come back and land. Equipment was called, landed at 2237Z without…
- [Incident 19930620023849I](https://openairdocs.org/incident/19930620023849I), Jun 20, 1993: Boeing 737347 (N305WA), Salt Lake City, UT, Minor damage. While taxiing into gate NR2 engine struck a belt loader.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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