
National Transportation Safety Board Washington, D.C. 20594 PRSRT STD OFFICIAL BUSINESS Postage & Fees Paid Penalty for Private Use, $300 NTSB Permit No. G-200 In-Flight Engine Failure and Subsequent Ditching Air Sunshine, Inc., Flight 527 Cessna 402C, N314AB About 7.35 Nautical Miles West-Northwest of Treasure Cay Airport, Great Abaco Island, Bahamas July 13, 2003 Aircraft Accident Report NTSB/AAR-04/03 PB2004-910403 Notation 7671A National National Transportation Transportation Safety Board Safety Board Washington, D.C. Washington, D.C. Aircraft Accident Report In-Flight Engine Failure and Subsequent Ditching Air Sunshine, Inc., Flight 527 Cessna 402C, N314AB About 7.35 Nautical Miles West-Northwest of Treasure Cay Airport, Great Abaco Island, Bahamas July 13, 2003 RAN S P T O L R A T LUR IBUS A N P UNUM E O T I I O T A N N S A D FE R NTSB/AAR-04/03 T Y B OA PB2004-910403 National Transportation Safety Board Notation 7671A 490 L’Enfant Plaza, S.W. Adopted October 13, 2004 Washington, D.C. 20594 National Transportation Safety Board. 2005. In-Flight Engine Failure and Subsequent Ditching, Air Sunshine, Inc., Flight 527, Cessna 402C, N314AB, About 7.35 Nautical Miles West-Northwest of Treasure Cay Airport, Great Abaco Island, Bahamas, July 13, 2003. Aircraft Accident Report NTSB/AAR-04/03. Washington, DC. Abstract: This report explains the accident involving Air Sunshine, Inc., flight 527, a Cessna 402C, which experienced an in-flight engine failure and was subsequently ditched about 7.35 nautical miles west-northwest of Treasure Cay Airport, Great Abaco Island, Bahamas. The safety issues discussed in this report include maintenance record-keeping and practices, pilot proficiency, Federal Aviation Adminstration (FAA) oversight, and emergency briefings. A safety recommendation concerning emergency briefings is addressed to the FAA. The National Transportation Safety Board is an independent Federal agency dedicated to promoting aviation, railroad, highway, marine, pipeline, and hazardous materials safety. Established in 1967, the agency is mandated by Congress through the Independent Safety Board Act of 1974 to investigate transportation accidents, determine the probable causes of the accidents, issue safety recommendations, study transportation safety issues, and evaluate the safety effectiveness of government agencies involved in transportation. The Safety Board makes public its actions and decisions through accident reports, safety studies, special investigation reports, safety recommendations, and statistical reviews. Recent publications are available in their entirety on the Web at <http://www.ntsb.gov>. Other information about available publications also may be obtained from the Web site or by contacting: National Transportation Safety Board Public Inquiries Section, RE-51 490 L’Enfant Plaza, S.W. Washington, D.C. 20594 (800) 877-6799 or (202) 314-6551 Safety Board publications may be purchased, by individual copy or by subscription, from the National Technical Information Service. To purchase this publication, order report number PB2004-910403 from: National Technical Information Service 5285 Port Royal Road Springfield, Virginia 22161 (800) 553-6847 or (703) 605-6000 The Independent Safety Board Act, as codified at 49 U.S.C. Section 1154(b), precludes the admission into evidence or use of Board reports related to an incident or accident in a civil action for damages resulting from a matter mentioned in the report. iii Aircraft Accident Report Contents Figures . .v Abbreviations . vi Executive Summary . vii 1. Factual Information . 1 1.1 History of Flight . 1 1.2 Injuries to Persons. 4 1.3 Damage to Airplane . 5 1.4 Other Damage. 5 1.5 Personnel Information. 5 1.5.1 The Pilot . 5 1.5.1.1 Flight Check History . 6 1.5.2 The Director of Maintenance . 7 1.5.3 The Assistant Mechanic . 8 1.6 Airplane Information . 8 1.6.1 Engines and Propellers. 9 1.6.1.1 Air Sunshine’s Approved Aircraft Inspection Program. 10 1.6.1.2 Differential Compression Checks . 11 1.6.1.2.1 June 12 to 14, 2003, Differential Compression Checks . 12 1.6.1.3 Time Between Overhauls. 15 1.7 Meteorological Information . 16 1.8 Aids to Navigation . 16 1.9 Communications . 16 1.10 Airport Information. 16 1.11 Flight Recorders . 17 1.12 Wreckage and Impact Information . 17 1.12.1 General . 17 1.12.2 Engines and Propellers. 18 1.13 Medical and Pathological Information . 20 1.14 Fire . 20 1.15 Survival Aspects . 20 1.15.1 General . 20 1.15.2 Emergency Briefings . 21 1.15.3 Personal Flotation Devices. 21 1.15.4 Search and Rescue . 23 1.16 Tests and Research . 24 1.16.1 Cessna Airplane Performance Data . 24 1.16.2 Airplane Performance Study . 25 1.16.3 Metallurgical Inspections . 26 1.16.3.1 Right Engine Cylinder Assemblies . 26 1.16.3.2 Right Engine Pistons . 27 1.16.3.3 Right Engine Crankcase. 27 Contents iv Aircraft Accident Report 1.16.3.4 Right Engine No. 2 Cylinder Hold-Down Studs and Through Bolts . 27 1.16.3.5 Cylinder Hold-Down Nuts. 29 1.17 Organizational and Management Information . 29 1.17.1 Air Sunshine. 29 1.17.1.1 Air Sunshine’s In-Flight Engine Failure Procedures. 30 1.17.1.2 Ditching Procedures. 32 1.17.1.3 Company Record-Keeping. 32 1.17.1.3.1 Maintenance Records . 32 1.17.1.3.2 Aircraft Flight Logs. 33 1.17.2 Federal Aviation Administration Oversight. 33 1.17.2.1 General. 33 1.17.2.2 San Juan Flight Standards District Office Preaccident Oversight of Air Sunshine . 34 1.17.2.3 Fort Lauderdale Flight Standards District Office Postaccident Oversight of Air Sunshine . 34 1.17.2.4 San Juan Flight Standards District Office Postaccident Oversight of Air Sunshine . 34 1.17.2.5 Additional Postaccident Actions . 35 1.18 Additional Information . 36 1.18.1 Previous Ditching Accidents . 36 2. Analysis . 37 2.1 General . 37 2.2 Accident Sequence . ..
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