Portland International Airport
Aircraft Accident/Incident Report

Portland, Oregon 97201
Sunday, April 6, 1997 13:48 PDT

NTSB Narrative Summary Released at Completion of Accident

The ramp agent handling the flight, who is required by company procedures to check doors secured during a pre-departure check, stated, '...upon my releasing them to taxi I did not notice anything different, all doors were closed.' The captain reported that as the gear was brought up on takeoff, the flightcrew heard a 'loud wind noise.' He stated that they had no indications of anything wrong on the annunciator panel (which contains a red CARGO DOOR warning light to indicate that the cargo door is open or not secure.) He reported that they then looked in the back of the aircraft, and the passengers told them that the cargo door had come open. The crew then returned to land. An inventory of the cargo compartment contents after landing revealed that no baggage had been lost. During postaccident examination of the aircraft, the aft cargo door locking handle was observed in the unlocked position as the door was swung down, and visual inspection of the aft cargo door locks, switches, and annunciator cargo door warning systems found no discrepancies with the aft cargo door or its indicating/warning system.

NTSB Probable Cause Narrative

the flightcrew's inadequate preflight, and the ramp agent's inadequate dispatch of the aircraft. The unsecured cargo door was a factor.

Event Information

Type of Event Accident
Event Date 4/6/1997
Event Day of the Week Sunday
Time of Event 1348
Event Time Zone Pacific Daylight Time
Event City PORTLAND
Event State OREGON
Event Country --
Zipcode of the event site 97201
Event Date Year 1997
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PORTLAND INTERNATIONAL
Event Location Nearest Airport ID KPDX
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 50
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 10
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 14
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 749
NTSB Notification Source --
NTSB Notification Date Apr 10 1997 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:14PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N75ZV
NTSB Number SEA97LA085
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model 1900D
Aircraft Series Identifier 1900D
Aircraft Serial Number UE-75
Certified Max Gross Weight 16950
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 21
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MESA AIRLINES INC.
Aircraft Owner Street Address 2325 E. 30TH ST.
Aircraft Owner City FARMINGTON
Aircraft Owner State NM
Aircraft Owner Country
Aircraft Owner Zipcode 87401
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code MASA
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 Domestic
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code PDX
Departure City
Departure State
Departure Country
Departure Time 2046
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code YKM
Destination City YAKIMA
Destination State WA
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 10L
Runway Length 8000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --