# NTSB MIA07LA086: Aerospatiale ATR 72-212, N407AT, San Juan, PR, April 28, 2007 - Type: NTSB accident investigation - Classification: Accident · Serious injuries · Limited investigation · Final report - Date: April 28, 2007, 08:06 local (12:06 UTC) - Place: San Juan, PR - Coordinates: 18.433332, -66 - Nearby events: https://openairdocs.org/map.md?lat=18.4333&lon=-66.0000&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Highest injury: Serious injuries - Injuries: 1 serious, 2 minor, 50 uninjured - Status: Completed, report December 20, 2007 - Report: Approved by Office Director - Parties: FAA FSDO - NTSB case key (mKey): 65694 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA07LA086 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/65694/pdf - Page: https://openairdocs.org/ntsb/MIA07LA086 ## Probable cause In-flight encounter with turbulence that resulted in injuries to a flight attendant and a passenger. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - In flight encounter with weather, cruise - weather condition - turbulence ## Analysis The Captain made the announcement to prepare for the approach to land at San Juan, Puerto Rico, he alerted the flight attendants of the possibility of encountering turbulence, and asked that everyone remain seated. After initiated the descent the airplane entered a broken layer of clouds, encountering light turbulence, followed by a momentary "jolt" of turbulence. As the airplane encountered the momentary "jolt", both flight attendants who were walking to their seats, and one passenger, who had been in the lavatory, were thrown and received injuries. Both the flight data recorder and the cockpit voice recorder were sent to the NTSB's Recorder Laboratory for readout, and when examined was found to contain information related to the turbulence event. The information showed that the Captain had both provided verbal warning of potential turbulence and had activated the fasten seatbelt sign well in advance of the turbulence event. ## Factual narrative On April 28, 2007, about 0806 Atlantic standard time, an Aerospatiale ATR 72-212 airplane, N407AT, registered to AMR Leasing Corporation, and operated by Executive Airlines, as American Eagle flight 5089, a Title 14 CFR Part 121scheduled international passenger flight from Nevis Island, St. Kitts and Nevis, to San Juan, Puerto Rico, encountered turbulence while descending to land at San Juan. The airline transport-rated pilot and first officer were not injured, two flight attendants received minor injuries, and one passenger received serious injuries. The airplane did not incur any damage. The flight originated in Nevis Island, the same day, about 0650. The Director of Flight Safety for Executive Airlines said that a few minutes after the Captain made the announcement to prepare for the approach to land at San Juan, Puerto Rico, he alerted the flight attendants of the possibility of encountering turbulence, and asked that everyone remain seated. According to the Director of Safety, the captain then initiated the descent, and the airplane entered a broken layer of clouds, encountering light turbulence, followed by a momentary "jolt" of turbulence. As the airplane encountered the momentary "jolt", both flight attendants who were walking to their seats, and one passenger, who had been in the lavatory, were thrown and received injuries. The flight data recorder was sent to the National Transportation Safety Board's Vehicle Recorder Laboratory for readout, and when examined was found to contain approximately 25 hours of data, was in good condition, and included data pertaining to the turbulence event. In addition, the solid state cockpit voice recorder was sent to the NTSB's Audio Laboratory for readout. The recorder contained two hours of audio information, to include information related to the turbulence event. No anomalies were noted, and the information showed that the Captain had both provided verbal warning of potential turbulence and had activated the fasten seatbelt sign well in advance of the turbulence event. ## Aircraft - Registration: [N407AT](https://openairdocs.org/deregistered/N407AT-2015-04-07), registration cancelled 2015-04-07, S/N 407, built 1994 (OpenAirDocs) - Reported make and model: Aerospatiale ATR 72-212 - Registry model: [Aerospatiale ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (registry code 8680945) (OpenAirDocs) - Registry engine: [Pratt & Whitney 127](https://openairdocs.org/engine/pratt-whitney-127) (registry code 52132, turbo-prop) (OpenAirDocs) - Category: Airplane - Serial number: 407 - Airframe hours: 26428 - Engines: Pratt & Whitney PW127 turbo prop; Pratt & Whitney PW127 turbo prop - Damage: No damage - Flight: Part 121 - Registered owner: Executive Airlines - Airworthiness certificate: Standard, Transport - Departed: TKPN, Nevis Island - Destination: TJSJ, San Juan, PR - Flight plan: IFR ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 38; injuries: none; airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1; last flight review February 1, 2007; seat: left; flight hours: 6,525 total, 3,789 in this make and model - Co-pilot; age 24; injuries: none; commercial; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1; last flight review March 1, 2007; seat: right; flight hours: 1,205 total, 64 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 0° at 0 knots - Visibility: 6 statute miles - Lowest ceiling: 1,800 ft broken - Temperature: 79 °F, dew point 72 °F - Altimeter: 30.00 inHg - Observed at: SJU ## 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 20070428008899A](https://openairdocs.org/incident/20070428008899A), Apr 28, 2007: Aerosp ATR72212, San Juan, Puerto Rico, No damage. (-23) On April 28, 2007, at about 0800 atlantic standard time, an aerospatiale ATR-72-212 airplane, N407AT, registered to amr leasing corporation, and operated… 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.