Boeing 757-222 N506UA
17 May 2006 · Portland, Oregon, United States · No injuries
Summary
On 17 May 2006 at about 16:08 local time, a Boeing 757-222 registered N506UA was involved in an incident near Portland, Oregon, United States. 189 people were on board and nobody was injured. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 16:08
- Classification
- Incident
- Location
- Portland, Oregon, United States
- Nearest airport
- Portland Intl (PDX)
- Coordinates
- 45.5886, -122.5975
- Aircraft
- Boeing 757-222
- Registration
- N506UA
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 121: Air Carrier
- Phase of flight
- Not recorded
- Route
- Portland → Denver
- Aircraft damage
- Not recorded
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA06IA105
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 189 | 0 | 0 | 0 | 189 |
Probable cause
The inadvertent deployment of the off-wing escape slide due to the inadequate latching of the slide compartment door following access by maintenance personnel.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
Post landing examination of the airplane by personnel from United Airlines and the Federal Aviation Administration revealed that the left off-wing escape slide had deployed, without inflating, and was observed hanging from the aircraft's fuselage. Further examination by United maintenance personnel revealed that the slide carrier tray assembly had rotated out to the open position. The off-wing slide compartment, door and operating latch mechanism were inspected by United maintenance personnel and no discrepancies were noted. Additional examination of the off-wing escape slide assembly by personnel from Boeing engineering revealed no evidence of mechanical malfunction with the system. Maintenance records indicated that on May 15, 2006, (four flights before the slide deployment) the off-wing escape slide pack was replaced in accordance with routine scheduled maintenance intervals for the assembly. The maintenance was completed, and inspected, by United Airlines personnel at a maintenance facility in Chicago, Illinois. A post incident Maintenance Investigation report submitted to the NTSB by United Airlines indicated that the inadvertent deployment of the off-wing slide assembly was the result of the carrier tray not being locked in the stowed position.
Quoted verbatim from the NTSB record.
Other Boeing 757 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 28 Oct 2006 | Boeing 757-224 | Newark, New Jersey, United States | Continental Airlines Inc | No injuries | - |
| 15 Mar 2006 | Boeing 757-222 | Omaha, Nebraska, United States | - | Serious injuries | - |
| 26 Feb 2006 | Boeing 757-232 | Boston, Massachusetts, United States | - | No injuries | - |
| 28 Oct 2007 | Boeing 757-225 | Charlotte, North Carolina, United States | US Airways Inc | No injuries | - |
| 11 Jul 2007 | Boeing 757-232 | Fort Lauderdale, Florida, United States | Delta Airlines Inc DFW Base Maintenance | No injuries | - |
| 3 Jun 2007 | Boeing 757-251 | Denver, Colorado, United States | - | Serious injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 4 Mar 2006 | Beechcraft V35B | Burns, Oregon, United States | Stanley E. Harris | No injuries | - |
| 4 Mar 2006 | Piper PA-18A | Shady Cove, Oregon, United States | - | No injuries | - |
| 5 Mar 2006 | Piper PA-18 | Saint Paul, Oregon, United States | Laurence A. Holman | No injuries | - |
| 3 Sep 2006 | Cessna 180 | Arock, Oregon, United States | - | No injuries | - |
| 30 May 2006 | Cessna 206H | Aurora, Oregon, United States | Federal Bureau of Investigation | No injuries | - |
| 12 Mar 2006 | Kaman K-1200 | Dexter, Oregon, United States | - | Minor injuries | - |