United B788 near Ottawa on Dec 4th 2018, variable frequency starter generator failure

Last Update: December 7, 2018 / 21:16:30 GMT/Zulu time

Bookmark this article
Incident Facts

Date of incident
Dec 4, 2018

Classification
Incident

Airline
United

Flight number
UA-807

Destination
Beijing, China

Aircraft Registration
N28912

ICAO Type Designator
B788

A United Boeing 787-8, registration N28912 performing flight UA-807 from Washington Dulles,DC (USA) to Beijing (China), was enroute at FL370 about 70nm north of Ottawa,ON (Canada) when the crew decided to divert to San Francisco,CA (USA) to refuel the aircraft and change crew. The aircraft landed safely in San Francisco about 5 hours later.

The Canadian TSB reported shortly after departure the L1 variable frequency starter generator (VFSG) failed. The applicable procedure required the continuous use of the APU for the remainder of the flight. However, the continuous use of the APU for the 12 hours of the flight together with the normal fuel burn of both engines required more fuel to reach the destination than was on board. The crew therefore decided to divert to San Francisco, where the L1 VFSG was deactivated according to the minimum equipment list requirements.

The occurrence aircraft remained on the ground in San Francisco for about 3:45 hours, then continued the journey and reached Beijing with a delay of 8:15 hours.
Incident Facts

Date of incident
Dec 4, 2018

Classification
Incident

Airline
United

Flight number
UA-807

Destination
Beijing, China

Aircraft Registration
N28912

ICAO Type Designator
B788

This article is published under license from Avherald.com. © of text by Avherald.com.
Article source

You can read 4 more free articles without a subscription.

Subscribe now and continue reading without any limits!

Are you a subscriber?
Login
Subscribe

Read unlimited articles and receive our daily update briefing. Gain better insights into what is happening in commercial aviation safety.

Free newsletter

Want to know more and stay ahead? Get our free weekly newsletter and join 4854 existing subscribers.

By subscribing, you accept our terms and conditions and confirm that you've read our privacy policy.

Send tip

Support AeroInside by sending a small tip amount.

Related articles

Newest articles

Subscribe today

Are you researching aviation incidents? Get access to AeroInside Insights, unlimited read access and receive the daily newsletter.

Pick your plan and subscribe

Partner

Blockaviation logo

A new way to document and demonstrate airworthiness compliance and aircraft value. Find out more.

Virtual Speech logo

Train yourself online in VR with the special course for aviation: "Crisis Communications: Airlines". Find out more.

Get updates

Never miss an article from AeroInside. Subscribe to our free weekly newsletter and join 4854 existing subscribers.

By subscribing, you accept our terms and conditions and that you've read our privacy policy.

AeroInside Blog
Popular aircraft
Airbus A320
Boeing 737-800
Boeing 737-800 MAX
Popular airlines
American Airlines
United
Delta
Air Canada
Lufthansa
British Airways