# NTSB Incident LAX99IA072
> **Boeing 727-225A** · 1999-01-05 · PHOENIX, AZ, USA · NONE
## Event
- **NTSB number:** LAX99IA072
- **Event ID:** 20001204X00072
- **Type:** Incident
- **Date:** 1999-01-05
- **Location:** PHOENIX, AZ, USA
- **Coordinates:** 33.430271, -112.010063
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 180
- **Total aboard:** 180
## Aircraft
- **Make:** Boeing
- **Model:** 727-225A
- **Registration:** N804MA
- **FAR Part:** 121
- **Engines:** 3
- **Damage:** MINR
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the ground handling personnel to properly secure the aft cargo door following the loading of the late arriving baggage.  A factor in the incident was an intermittent cargo door warning light circuit due to contamination in the proximity switch terminals.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX99IA072) · AI Analytics · CC0 1.0*