Premium research interface

The modern interface for aviation safety intelligence.

Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.

63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Featured Report

Loading…

Loading featured report…

Loading…
Open Report

Safety trends by operating rule

Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.

Loading trend charts…

Browse the aviation graph

Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.

Last Data Update

By Decade

By Month

Aircraft Manufacturer

More manufacturers

Airports

More airports

Operators

More operators

About

Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.

The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.

FAQs

NTSB Report

February 6, 1985 · Mcdonnell Douglas DC-9-15 · N926AX

Philadelphia, PA

Overview

Report Status
Preliminary report
Event Type
Accident
Date
February 6, 1985
Injury Outcomes
2 injuries (2 serious injuries)
Location
Philadelphia, PA
Aircraft
Mcdonnell Douglas DC-9-15
Tail Number
N926AX
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
DCA85AA013

AFTER LNDG, THE ACFT WAS PARKED ON THE RAMP FOR APRX 39 MIN TO LOAD CARGO. DRG THAT TIME, LGT FREEZING DRIZZLE WAS FALLING, INTERMITTENTLY MIXED WITH ICE PELLETS & SNW. THE CREW CHECKED THE ACFT SURFACES FROM THE COCKPIT & ENTRY DOOR, BUT OBSERVED NO ICE OR SNW ADHERING TO THE TOPS OF THE WINGS, NOSE SECTION, WINDSHIELD OR ABOVE THE DOOR. THE CAPT DECLINED AN OFFER TO DE-ICE, THO OTR ACFT WERE BEING DE-ICED. THE TAKEOFF WAS NRML (18 DEG NOSE UP ATTITUDE) UNTIL JUST AFTER LIFT-OFF, THEN THE ACFT ENTERED AN UNCOMMANDED L ROLL & BOTH ENGS COMPRESSOR STALLED. THE CAPT CORRECTED WITH L AILERON & RUDDER, THEN BEGAN ABORTING THE TAKEOFF. THE ACFT TOUCHED DWN LEFT OF THE RWY ON THE TAIL SKID & R WING TIP,APRX 5600' FROM THE THRESHOLD & ON A 070 DEG HDG. IT THEN TRAVELED ANOTHER 2025' IN A SWEEPING RIGHT ARC, HITTING 2 RWY SIGNS & CAME TO REST HDG WEST WITH THE R PYLON BENT DOWN. INV REVEALED A THIN LAYER OF ICE (EST 0.15' THICK) WOULD HAVE BEEN ON THE WINGS, RAISING THE ACFT'S STALL SPEED. WHEN DC-9-15 ACFT STALL, ENGS ARE SUSCEPTIBLE TO COMPRESSOR STALLS.

Full Narrative

AFTER LNDG, THE ACFT WAS PARKED ON THE RAMP FOR APRX 39 MIN TO LOAD CARGO. DRG THAT TIME, LGT FREEZING DRIZZLE WAS FALLING, INTERMITTENTLY MIXED WITH ICE PELLETS & SNW. THE CREW CHECKED THE ACFT SURFACES FROM THE COCKPIT & ENTRY DOOR, BUT OBSERVED NO ICE OR SNW ADHERING TO THE TOPS OF THE WINGS, NOSE SECTION, WINDSHIELD OR ABOVE THE DOOR. THE CAPT DECLINED AN OFFER TO DE-ICE, THO OTR ACFT WERE BEING DE-ICED. THE TAKEOFF WAS NRML (18 DEG NOSE UP ATTITUDE) UNTIL JUST AFTER LIFT-OFF, THEN THE ACFT ENTERED AN UNCOMMANDED L ROLL & BOTH ENGS COMPRESSOR STALLED. THE CAPT CORRECTED WITH L AILERON & RUDDER, THEN BEGAN ABORTING THE TAKEOFF. THE ACFT TOUCHED DWN LEFT OF THE RWY ON THE TAIL SKID & R WING TIP,APRX 5600' FROM THE THRESHOLD & ON A 070 DEG HDG. IT THEN TRAVELED ANOTHER 2025' IN A SWEEPING RIGHT ARC, HITTING 2 RWY SIGNS & CAME TO REST HDG WEST WITH THE R PYLON BENT DOWN. INV REVEALED A THIN LAYER OF ICE (EST 0.15' THICK) WOULD HAVE BEEN ON THE WINGS, RAISING THE ACFT'S STALL SPEED. WHEN DC-9-15 ACFT STALL, ENGS ARE SUSCEPTIBLE TO COMPRESSOR STALLS.

Flight

Event TypeAccident
Event Time23:51 EST
Nearest AirportPhiladelphia Intl (0nm N)
Runway9L
Runway Length9500 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftMcdonnell Douglas DC-9-15
Tail NumberN926AX
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsP&W · JT8D-7 · Turbofan · 14000

People & Injuries

Injury Summary2 injuries (2 serious injuries)
Fatal0
Serious2
Minor0
Uninjured0
Total2
Crew 1Age 40 · First Class

Conditions

ConditionsIMC
LightDark Night
Wind60° @ 9 kt
Visibility2 sm
CeilingOvercast 1000 ft
Temperature / Dew Point28 C / 25 C
Altimeter29.00 inHg
Observation Time23:51
Weather SourceWFAC

Appendix: Source Data