# NTSB Incident LAX99IA230
> **Boeing DC-9-82** · 1999-06-25 · SAN DIEGO, CA, USA · NONE
## Event
- **NTSB number:** LAX99IA230
- **Event ID:** 20001212X19021
- **Type:** Incident
- **Date:** 1999-06-25
- **Location:** SAN DIEGO, CA, USA
- **Coordinates:** 32.93077, -117.010246
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 141
- **Total aboard:** 141
## Aircraft
- **Make:** Boeing
- **Model:** DC-9-82
- **Registration:** N450AA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

failure of the number three bearing.  The resulting oil leak from the bearing led to coke/carbon buildup, which resulted in chafing of the turbine's low-pressure compressor drive shaft on the rear compressor seal tube and subsequent fracture of the drive shaft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX99IA230) · AI Analytics · CC0 1.0*