ASN Wikibase Occurrence # 232463
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| Date: | Monday 28 January 2019 |
| Time: | 08:15 LT |
| Type: |  Airbus A350-941 |
| Owner/operator: | Singapore Airlines |
| Registration: | 9V-SMS |
| MSN: | 158 |
| Year of manufacture: | 2017 |
| Engine model: | Rolls-Royce Trent XWB-84 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | Singapore-Changi International Airport (SIN/WSSS) -
 Singapore
|
| Phase: | Standing |
| Nature: | - |
| Departure airport: | - |
| - | |
| Investigating agency: | TSIB Singapore |
| Confidence Rating: |  Accident investigation report completed and information captured |
While unloading food carts from the aircraft, a catering truck damaged the aft-most door on the right side of the aircraft, the door hinge and the door frame.
Conclusions:
1 The catering truck had a higher-than-normal engine idle RPM. This resulted in excessive hydraulic pressure that led to the hydraulic scissor lift moving in a way that lowered the cabin platform.
2 The optimal engine idle speed of 900RPM desired by the truck manufacturer was not made known to the truck operator.
3 The rear control panel was not meant for raising the cabin platform during catering operation to aircraft.
4 In the existing design of the truck cabin safety system, any command from the cabin control panels (front or rear) would override the safety shoe’s safety mechanism to automatically cause a lowering of the cabin platform.
Accident investigation:
 |
|
Sources:
TSIB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Jan-2020 17:27 | harro | Added |
Corrections or additions? ... Edit this accident description
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