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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.

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May 19, 2011 · Boeing 707-321B · N707AR

Point Mugu, CA

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
May 19, 2011
Injury Outcomes
3 injuries (3 minor injuries)
Location
Point Mugu, CA
Aircraft
Boeing 707-321B
Tail Number
N707AR
Operator
Omega Aerial Refueling Services
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
DCA11PA075

The NTSB's full report is available at http://www.ntsb.gov/investigations/reports_aviation.html. The Aircraft Accident Brief number is NTSB/AAB-13/01. On May 18, 2011, about 1727 Pacific daylight time,[1] a modified Boeing 707, registration N707AR, operating as Omega Aerial Refueling Services (Omega) flight 70 crashed on takeoff from runway 21 at Point Mugu Naval Air Station, California (KNTD). The airplane collided with a marsh area to the left side beyond the departure end of the runway and was substantially damaged by postimpact fire. The three flight crewmembers sustained minor injuries. The flight was conducted under the provisions of a contract between Omega and the US Naval Air Systems Command (NAVAIR) to provide aerial refueling of Navy F/A-18s in offshore warning area airspace. According to the Federal Aviation Administration (FAA), Omega, and the US Navy, the airplane was operating as a nonmilitary public aircraft under the provisions of 49 United States Code Sections 40102 and 40125.

NTSB Probable Cause

the failure of a midspar fitting, which was susceptible to fatigue cracking and should have been replaced with a newer, more fatigue-resistant version of the fitting as required by an airworthiness directive. Also causal was an erroneous maintenance entry made by a previous aircraft owner, which incorrectly reflected that the newer fitting had been installed.

Full Narrative

The NTSB's full report is available at http://www.ntsb.gov/investigations/reports_aviation.html. The Aircraft Accident Brief number is NTSB/AAB-13/01. On May 18, 2011, about 1727 Pacific daylight time,[1] a modified Boeing 707, registration N707AR, operating as Omega Aerial Refueling Services (Omega) flight 70 crashed on takeoff from runway 21 at Point Mugu Naval Air Station, California (KNTD). The airplane collided with a marsh area to the left side beyond the departure end of the runway and was substantially damaged by postimpact fire. The three flight crewmembers sustained minor injuries. The flight was conducted under the provisions of a contract between Omega and the US Naval Air Systems Command (NAVAIR) to provide aerial refueling of Navy F/A-18s in offshore warning area airspace. According to the Federal Aviation Administration (FAA), Omega, and the US Navy, the airplane was operating as a nonmilitary public aircraft under the provisions of 49 United States Code Sections 40102 and 40125.

Flight

Event TypeAccident
Event Time17:27 PDT
Nearest AirportNaval Base Ventura County (1nm)
Runway21
Runway Length11000 ft
Runway Width200 ft
Flight Plan FiledIFR
Flight Plan ActivatedYes
Aircraft FireGrd
Aircraft ExplosionNo

Aircraft

AircraftBoeing 707-321B
Tail NumberN707AR
Aircraft CategoryAir
DamageSubstantial
OperatorOmega Aerial Refueling Services
Engines4
Engine TypeTurbofan
Engine DetailsP & W · JT3D-3B · Turbofan · 18000 | P & W · JT3D-3B · Turbofan · 18000 | P & W · JT3D-3B · Turbofan · 18000
Seats192

People & Injuries

Injury Summary3 injuries (3 minor injuries)
Fatal0
Serious0
Minor3
Uninjured0
Total3
Crew 1Age 41 · First Class · Minor
Crew 2Age 45 · Minor
Crew 3Minor

Conditions

ConditionsVMC
LightDaylight
Wind280° @ 24 kt, gusting 34 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point59 / 48
Altimeter29.75 inHg
Observation Time00:30
Weather SourceWFAC

Appendix: Source Data