Fokker F28 MK 0100 N1426A

Summary

On 6 March 2001 at about 11:40 local time, a Fokker F28 MK 0100 registered N1426A was involved in an incident near Montreal, Canada. 44 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

6 March 2001 at 11:40

Classification

Incident

Location

Montreal, Canada

Nearest airport

Dorval Intl (YUL)

Coordinates

Not recorded

Aircraft

Fokker F28 MK 0100

Registration

N1426A

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Phase of flight

Not recorded

Route

Montreal → Chicago

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

CHI01IA102

Nobody was injured.

the inaccurate aircraft deicing service the ground personnel performed alowing fluid injestion and the auxiliary power unit's turbine failure while standing. A factor was the auxiliary power unit's overspeed.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The auxiliary power unit (APU) ingested deicing fluid and snow and sustained an uncontained turbine failure. The pressure bulkhead sustained minor damage. The airplane was being deiced. Four crew and 40 passengers were uninjured. The YUL weather was: Wind 050 degrees at 25 knots gusting to 33 knots; visibility 15 statute miles; present weather drifting snow; sky condition broken 2,800 feet overcast 7,600 feet; temperature -1 degree C; dew point -5 degrees C; altimeter 29.57 inches of mercury. Honeywell's APU teardown inspection stated, "Evidence of an engine overspeed event with a commanded auto-shutdown was present in the Electronic Control Unit (ECU) non-volatile memory." The report further stated, "In February 2001 American Airlines issued a 'Winterization Bulletin' for the F-100 advising that de-ice spray should not be sprayed into the APU inlet. Additionally, the Fokker 100 maintenance manual section 12-31-00, page 301specifically advises 'Do not let de-icing and/or anti-icing fluid/water mixture go into the APU inlet. Injury to persons and/or damage to equipment can occur.'"

Quoted verbatim from the NTSB record.