National Transportation Safety Board
Aviation Accident Final Report

 

 

Location:

Houston, TX

Accident Number:

CEN11LA223

Date & Time:

03/04/2011, 0400 CST

Registration:

XA-TWH

Aircraft:

LEARJET 25

Aircraft Damage:

Substantial

Defining Event:

Landing area overshoot

Injuries:

6 None

Flight Conducted Under:

Part 129: Foreign - Air Medical (Medical Emergency)

Analysis

During an instrument landing in night instrument meteorological conditions, the airplane exited the far end of the runway and struck the instrument landing system localizer antenna system. The pilot and the co-pilot both reported that, due to fog and low visibility, the pilot flared the airplane too high and landed too long on the runway. The pilot applied maximum braking and reverse thrust, but could not stop the airplane before exiting the runway. The reported weather was visibility of 3/4 mile in mist and an indefinite ceiling at 200 feet. The operator reported that there was no mechanical malfunction or failure of the airplane that would have precluded normal operation. Both pilots were likely influenced by the mission pressure to land because of medical considerations for a passenger on board.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The flying pilot's failure to attain the proper touchdown point in low-visibility conditions, which resulted in a runway overrun. Contributing to the accident was mission pressure to land at that airport.

Findings

Aircraft

Landing flare - Not attained/maintained (Cause)

Personnel issues

Lack of action - Pilot (Cause)

Motivation/respond to pressure - Pilot (Factor)

Environmental issues

Fog - Contributed to outcome

Factual Information

On March 4, 2011, about 0400 central standard time, a Learjet 25D, XA-TWH, was substantially damaged when it impacted obstructions while landing at William P. Hobby Airport (HOU), Houston, Texas. The two pilots, two medical crewmembers, and two passengers were not injured. The airplane was registered to Grupo Desarrollador Mares del Pacifico, S.A. de C.V., and operated by Personas y Paquetes Por Aire, S.A. de C.V. under the provisions of 14 Code of Federal Regulations Part 129 as a foreign air carrier air ambulance flight. Night instrument meteorological conditions prevailed and an instrument flight rules flight plan was filed. The flight originated about 0140 from Angel Albino Corzo International Airport (MMTG) Tuxtla Gutiérrez, Chiapas, México.

During the landing on runway 12R, the airplane exited the southeast end of the runway, struck, and damaged the instrument landing system (ILS) localizer antenna system. The airplane continued traveling about 1,000 feet past the end of the runway and came to rest upright in a flat grassy area.

The pilot and the co-pilot both stated that due to the fog and low visibility they could not see the far end of the runway and flared the airplane too high. After landing long on the runway the pilot said he applied maximum braking and reverse thrust but could not stop the airplane before colliding with the ILS antenna system. The operator reported that there was no mechanical malfunction or failure.

The operator stated that the decision not to delay the flight and to land in marginal conditions was influenced by medical considerations for the passenger, who needed immediate specialized medical treatment.

A review of recorded data from the HOU automated weather observation station, revealed the conditions at 0353 were wind from 200 degrees at 3 knots, visibility of 3/4 mile in mist, an indefinite ceiling at 200 feet, temperature of 19 degrees Celsius (C) , dew point of 18 degrees C, and an altimeter setting of 29.90 inches of Mercury.

 

History of Flight

Landing-flare/touchdown

Landing area overshoot (Defining event)

Landing-landing roll

Runway excursion

Collision with terr/obj (non-CFIT)

 

 

Pilot Information

Certificate:

Airline Transport

Age:

32, Male

Airplane Rating(s):

Multi-engine Land

Seat Occupied:

Left

Other Aircraft Rating(s):

None

Restraint Used:

Seatbelt

Instrument Rating(s):

Airplane

Second Pilot Present:

Yes

Instructor Rating(s):

None

Toxicology Performed:

No

Medical Certification:

Class 1 Without Waivers/Limitations

Last FAA Medical Exam:

06/30/2010

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

05/26/2010

Flight Time:

(Estimated) 5475 hours (Total, all aircraft), 1723 hours (Total, this make and model), 2700 hours (Pilot In Command, all aircraft), 67 hours (Last 90 days, all aircraft), 40 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft)

 

 

Co-Pilot Information

Certificate:

Commercial

Age:

27, Male

Airplane Rating(s):

Multi-engine Land

Seat Occupied:

Right

Other Aircraft Rating(s):

None

Restraint Used:

Seatbelt

Instrument Rating(s):

Airplane

Second Pilot Present:

Yes

Instructor Rating(s):

None

Toxicology Performed:

No

Medical Certification:

Class 1 Without Waivers/Limitations

Last FAA Medical Exam:

04/19/2010

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

05/26/2010

Flight Time:

(Estimated) 828 hours (Total, all aircraft), 533 hours (Total, this make and model), 57 hours (Pilot In Command, all aircraft), 60 hours (Last 90 days, all aircraft), 20 hours (Last 30 days, all aircraft), 4 hours (Last 24 hours, all aircraft)

 

 

Aircraft and Owner/Operator Information

Aircraft Make:

LEARJET

Registration:

XA-TWH

Model/Series:

25 D

Aircraft Category:

Airplane

Year of Manufacture:

 

Amateur Built:

No

Airworthiness Certificate:

Transport

Serial Number:

289

Landing Gear Type:

Retractable - Tricycle

Seats:

10

Date/Type of Last Inspection:

01/05/2011, Continuous Airworthiness

Certified Max Gross Wt.:

15000 lbs

Time Since Last Inspection:

 

Engines:

2 Turbo Jet

Airframe Total Time:

7098 Hours at time of accident

Engine Manufacturer:

GENERAL ELECTRIC

ELT:

C91A installed, not activated

Engine Model/Series:

CJ610

Registered Owner:

GRUPO DESARROLLADOR MARES DEL PACIFICO S A DE C V

Rated Power:

2850 lbs

Operator:

PERSONAS Y PAQUETES POR AIRE S A DE C V

Operating Certificate(s) Held:

Foreign Air Carrier (129)

Operator Does Business As:

USMX AIRLINK

Operator Designator Code:

QP6F

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Instrument Conditions

Condition of Light:

Night/Dark

Observation Facility, Elevation:

KHOU, 46 ft msl

Distance from Accident Site:

1 Nautical Miles

Observation Time:

0353 CST

Direction from Accident Site:

120°

Lowest Cloud Condition:

 / 200 ft agl

Visibility

0.75 Miles

Lowest Ceiling:

Indefinite (V V) / 200 ft agl

Visibility (RVR):

 

Wind Speed/Gusts:

3 knots /

Turbulence Type Forecast/Actual:

/

Wind Direction:

200°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

29.9 inches Hg

Temperature/Dew Point:

19°C / 18°C

Precipitation and Obscuration:

Heavy - Mist; No Precipitation

Departure Point:

Tuxla Gutierrez (MMTG)

Type of Flight Plan Filed:

IFR

Destination:

Houston, TX (KHOU)

Type of Clearance:

IFR

Departure Time:

0140 CST

Type of Airspace:

 

 

Airport Information

Airport:

William P Hobby Airport (KHOU)

Runway Surface Type:

Asphalt

Airport Elevation:

46 ft

Runway Surface Condition:

Dry

Runway Used:

12R

IFR Approach:

ILS

Runway Length/Width:

7602 ft / 150 ft

VFR Approach/Landing:

Full Stop; Straight-in

 

Wreckage and Impact Information

Crew Injuries:

4 None

Aircraft Damage:

Substantial

Passenger Injuries:

2 None

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

6 None

Latitude, Longitude:

29.640556, -95.273889 (est)

 


 


Administrative Information

Investigator In Charge (IIC):

Thomas Latson

Report Date:

01/31/2013

Additional Participating Persons:

Jimmy D Stahl; FAA Houston FSDO; Houston, TX

Publish Date:

01/31/2013

Investigation Docket:

http://dms.ntsb.gov/pubdms/search/dockList.cfm?mKey=78537