# NTSB ANC07LA067: Lockheed 382G-44K-30, N401LC, McGrath, AK, July 19, 2007 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: July 18, 2007, 21:02 local (Jul 19, 2007, 05:02 UTC) - Place: McGrath, AK - Coordinates: 62.992221, -156.525283 - Nearby events: https://openairdocs.org/map.md?lat=62.9922&lon=-156.5253&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 4 uninjured - Status: Completed, report November 29, 2007 - Report: Approved by Office Director - NTSB office: Alaska Regional Office - Parties: Anchorage FSDO-03 - NTSB case key (mKey): 66257 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC07LA067 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66257/pdf - Page: https://openairdocs.org/ntsb/ANC07LA067 ## Probable cause The pilot's excessive rotation of the airplane during takeoff, which resulted in dragging the tail on the runway and substantial damage. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Dragged wing,rotor,pod,float or tail/skid, takeoff - roll/run - rotation - excessive, pilot in command (cause) ## Analysis The airline transport pilot departed a gravel runway on a positioning flight under Title 14, CFR Part 91. During initial climb after takeoff, the airplane would not pressurize. Upon inspection at the destination airport, it was found that the tail had dragged on the gravel runway during takeoff from the departure airport, puncturing the skin and pressure vessel. ## Factual narrative On July 18, 2007, about 2102 Alaska daylight time, a Lockheed 382G-44K-30 airplane, N401LC, sustained substantial damage when the tail dragged the ground during takeoff at an airstrip 24 miles west-northwest of McGrath, Alaska. The airplane was being operated by Lynden Air Cargo, Anchorage, Alaska, en route to Anchorage, as an instrument flight rules (IFR) positioning flight under Title 14, CFR Part 91, when the accident occurred. The airline transport certificated pilot, co-pilot, and two loadmasters were not injured. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on August 19, the director of operations for the operator said during takeoff from a gravel airstrip, the pilot over-rotated the airplane, and the tail dragged the ground. He said the pilot reported that during initial climb after takeoff, the airplane's cabin failed to pressurize, and that an inspection of the airplane revealed a tear in the bottom skin of the tail, which compromised the pressure vessel of the airplane's cabin. The director of operations said the pilot told him the tear was not present during the airplane's preflight inspection. ## Aircraft - Registration: [N401LC](https://openairdocs.org/aircraft/N401LC), registered now, S/N 4606, built 1975 (OpenAirDocs) - Reported make and model: Lockheed 382G-44K-30 - Registry model: [Lockheed 382G-44K-30](https://openairdocs.org/model/lockheed-382g-44k-30) (registry code 526414Z) (OpenAirDocs) - Registry engine: [Allison 501-D22A](https://openairdocs.org/engine/allison-501-d22a) (registry code 03006, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 4606 - Airframe hours: 43658 - Engines: Allison 501-D-22A 4500 horsepower turbo prop - Damage: Substantial damage - Flight: Positioning, Part 91 - Operator: Lynden Air Cargo, doing business as Lynden Air Cargo - Registered owner: Lynden Air Cargo L L C - Airworthiness certificate: Standard, Normal; Standard, Utility - Last inspection: AAIP, April 1, 2007 - Departed: McGrath, AK - Destination: PANC, Anchorage, AK - Flight plan: VFR - Airport: Ganes Creek ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 42; injuries: none; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land, multi-engine sea; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review April 1, 2007; seat: left; flight hours: 18,000 total, 5,000 in this make and model, 12,000 as pilot in command, 233 in the last 90 days, 59 in the last 30 days - Co-pilot; age 57; injuries: none; airline transport; airplane ratings: single-engine sea, single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review August 1, 2006; seat: right; flight hours: 20,000 total ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 73 °F - Altimeter: 29.65 inHg ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20070718014889A](https://openairdocs.org/incident/20070718014889A), Jul 18, 2007: Lkheed 382G, Mcgrath, AK, Substantial damage. (-23) Aircraft struck tail during takeoff rotation from a remote Alaska mining strip. The first indication of a problem occurred during climbout when the… ## Other investigations on N401LC (2) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB DCA16LA096](https://openairdocs.org/ntsb/DCA16LA096), Feb 12, 2016: Lockheed 382G (N401LC), Iliamna, AK, substantial damage. Probable cause: The fatigue failure of the forward pressure bulkhead canted web that originated from stress corrosion cracking areas. Contributing to the failure were inspection procedures and intervals inadequate… - [NTSB ANC01LA081](https://openairdocs.org/ntsb/ANC01LA081), Jul 2, 2001: Lockheed L-382G (N401LC), Lake Minchumina, AK, substantial damage. Probable cause: The flight crew's improper recovery from a bounced landing. Factors associated with the accident were the selection of an unsuitable landing area, and a rough/uneven landing surface. From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.