Aircraft Accident/Incident Report

Houston, Texas 77032
Tuesady, March 9, 1993 14:00 CST

NTSB Narrative Summary Released at Completion of Accident

DURING CRUISE AT FLIGHT LEVEL 350, WHILE OVER THE GULF OF MEXICO, THE CREW RECEIVED A CLIMB RESOLUTION ADVISORY FROM THE TRAFFIC ALERT AND COLLISION AVOIDANCE SYSTEM (TCAS). THE CREW INITIATED A CLIMB INITIALLY AT 1,500 FPM, AND THEN INCREASED THE CLIMB TO 2,500 FPM. A PASSENGER STANDING NEAR THE AFT GALLEY SUSTAINED SERIOUS INJURIES. THE TRAFFIC WAS A NASA T-38A PERFORMING A FUNCTIONAL CHECK FLIGHT. DURING THE STALL SERIES, THE T-38A HAD DESCENDED THROUGH FLIGHT LEVEL 350, AND THE PILOT INITIATED A CLIMB BACK TO ABOVE FLIGHT LEVEL 350. THE T-38A WAS VFR BASED ON A LETTER OF AGREEMENT, AND THE PILOT HAD BEEN ADVISED BY ATC NOT TO GO BELOW FLIGHT LEVEL 350 BECAUSE OF NUMEROUS TRAFFIC IN THE AREA. THE LETTER OF AGREEMENT BETWEEN HOUSTON ARTCC, NASA, HOUSTON INTERCONTINENTAL TOWER, AND THE 147TH FIGHTER INTERCEPTOR GROUP, ELLINGTON FIELD, TEXAS, WAS IN VIOLATION OF EXTANT INTERNATIONAL CIVIL AVIATION ORGANIZATION (ICAO) AGREEMENTS, AND WAS RESCINDED ON 3/10/93, THE DAY FOLLOWING THE ACCIDENT.

NTSB Probable Cause Narrative

THE FAILURE OF THE PILOT OF THE T-38A TO FOLLOW FLIGHT ADVISORIES. A FACTOR WHICH CONTRIBUTED TO THE ACCIDENT WAS THE DEVELOPMENT OF A LETTER OF AGREEMENT BETWEEN THE FAA AND NASA WHICH WAS NOT IN ACCORDANCE WITH ICAO PROCEDURES.

Event Information

Type of Event Accident
Event Date 3/9/1993
Event Day of the Week Tuesday
Time of Event 1400
Event Time Zone Central Standard Time
Event City HOUSTON
Event State TEXAS
Event Country --
Zipcode of the event site 77032
Event Date Year 1993
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1350 Central Standard Time
Direction of event from weather observation facility (degrees) 350
Weather Observation Facility ID GLS
Elevation of weather observation facility 7
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1200
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 45
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 279
NTSB Notification Source --
NTSB Notification Date Mar 9 1993 12:00AM
NTSB Notification Time 1600
Fiche Number and/or location -used to find docket information 50153
Date of most recent change to record Dec 11 2000 1:11PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N79754
NTSB Number FTW93FA100
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage None
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 727-200
Aircraft Series Identifier 727-200
Aircraft Serial Number 21363
Certified Max Gross Weight 172500
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 159
Number of Engines 3
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Dec 9 1991 12:00AM
Airframe hours since last inspection 3480
Airframe Hours 38828
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name FIRST SECURITY STATE BANK
Aircraft Owner Street Address 79 S. MAIN ST.
Aircraft Owner City SALT LAKE CITY
Aircraft Owner State UT
Aircraft Owner Country
Aircraft Owner Zipcode 84111
Operator is an individual? --
Operator Name CONTINENTAL AIRLINES, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P. O. BOX 4607
Operator City HOUSTON
Operator State TX
Operator Country
Operator Zip code 77210
Operator Code CALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight International
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code MID
Departure City MERIDA,MEXICO
Departure State OF
Departure Country
Departure Time 1235
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 20 2002 12:42PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --