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Last updated: 26 November 2021
Status:Definitief
Datum:dinsdag 9 november 1999
Tijd:19:03
Type:Silhouette image of generic DC93 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-31F
Luchtvaartmaatschappij:TAESA
Registratie: XA-TKN
Constructienummer: 47418/570
Bouwjaar: 1970
Aantal vlieguren:58000
Aantal vluchten:59000
Motoren: 2 Pratt & Whitney JT8D-17A
Bemanning:slachtoffers: 5 / inzittenden: 5
Passagiers:slachtoffers: 13 / inzittenden: 13
Totaal:slachtoffers: 18 / inzittenden: 18
Schade: Vernield
Gevolgen: Written off (damaged beyond repair)
Plaats:5,3 km (3.3 mijl) S of Uruapan Airport (UPN) (   Mexico)
Fase: Kruisvlucht (ENR)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Uruapan Airport (UPN/MMPN), Mexico
Vliegveld van aankomst:Mexico City-Benito Juárez International Airport (MEX/MMMX), Mexico
Vluchtnummer: 725
Beschrijving:
TAESA flight 725 was a scheduled service from Tijuana to Mexico City with en route stops at Guadalajara and Uruapan. The DC-9-31 was scheduled to depart from Uruapan at 18:25 for the final 45-minute leg to Mexico City. The aircraft took off from runway 20 at 18:59 when 85 passengers had deplaned at Uruapan. Witnesses reported that the airplane assumed a higher than normal nose high attitude as soon as it departed. The airplane impacted the ground in a nose low attitude on a heading of 110 degrees in an avocado grove located on the east side of the departure course, 3.3 DME south of the airport.

Prior to entering service with TAESA June 1998, the aircraft had been used by NASA and was modified to support the reduced-gravity mission. As N650UG completed 193 flights for NASA (TT 436.3 hours) between May 29, 1995 and July 11, 1997.

Probable Cause:

Probable cause: "Crash of the aircraft, after an overrotation on takeoff and a climb with a very pronounced angle, which caused the loss of control, with spatial disorientation (loss of the horizon), in a flight operation by instruments (IFR), in which, according to the crew, there was a possible failure of asymmetry indication in the leading edge flaps (slats), with the crew neglecting to control the flight of the aircraft."

Contributing factors
1.- Inadequate preparation of information for instrument take-off (IFR) from Uruapan airport and failure to adhere to the operating procedures of the Aeronautical Information Publication (AIP) Manual.
2.- Failure to perform checklist procedures for the operation of the aircraft in its different phases.
3.- Loss of external vision (spatial disorientation), aggravated by turning on the cockpit lights, before the takeoff run.
4.- Inadequate procedure for the rotation of the aircraft during take-off, dragging the tail skid on the runway
5.- Angle of climb greater than that established in the aircraft Operations Manual.
6.- Lack of cockpit resource management (CRM).

Accident investigation:
cover
Investigating agency: SCT Mexico
Status: Investigation completed
Duration: 196 days (7 months)
Accident number: final report
Download report: Final report

Bronnen:
» El Informador
» James P. Withrow
» La Jornada


Foto's

photo of DC-9-31F-N192SA
accident date: 09-11-1999
type: McDonnell Douglas DC-9-31F
registration: N192SA
photo of DC-9-31F-N650UG
accident date: 09-11-1999
type: McDonnell Douglas DC-9-31F
registration: N650UG
 

Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Uruapan Airport en Mexico City-Benito Juárez International Airport bedraagt 309 km (193 miles).
Accident location: Approximate; accuracy within a few kilometers.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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DC-9-30

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  • 24e zwaarste ongeval (op dit moment)
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