Accident: Boeing 737 7H4
Apr 17, 2018 · Philadelphia, PA
NTSB numberDCA18MA142Event id20180417X23642
- 1
- Fatalities
- 8
- Serious injuries
- 125
- Minor injuries
- 6
- Uninjured
Probable cause
A low-cycle fatigue crack in the dovetail of fan blade No. 13, which resulted in the fan blade separating in flight and impacting the engine fan case at a location that was critical to the structural integrity and performance of the fan cowl structure. This impact led to the in-flight separation of fan cowl components, including the inboard fan cowl aft latch keeper, which struck the fuselage near a cabin window and caused the window to depart from the airplane, the cabin to rapidly depressurize, and the passenger fatality.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Boeing 737 7H4
- Registration
- N772SW
- Year built
- 2000
- Category
- Airplane
- Damage
- Substantial
- Operating rules
- Part 121: air carrier
- Defining event
- Enroute-climb to cruise Powerplant sys/comp malf/fail
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
Nearest airports
Airports with a Voydar profile closest to the recorded position. Proximity only.
- Philadelphia International Airport (PHL)0 nm (0 km) west
- Philadelphia Seaplane Base (PSQ)3 nm (5 km) west
- Wings Field (BBX)16 nm (30 km) north
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.