Northwest Orient Airlines Flight 1-11

In the evening of July 13, 1960, at 11:25&nbsp;pm, Flight 1–11 landed at [[Naha Airport|Okinawa-Naha Airport]] on the [[Japan]]ese island of [[Okinawa Island|Okinawa]], which was its last intended stopover of its journey from [[New York City]], [[United States]], to [[Manila]], Philippines. The other stopovers included the American cities of [[Seattle]], [[Washington (state)|Washington]], and [[Anchorage, Alaska]], as well as Japan's capital [[Tokyo]].<ref name="GSM"/>

In the evening of July 13, 1960, at 11:25&nbsp;pm, Flight 1–11 landed at [[Naha Airport|Okinawa-Naha Airport]] on the [[Japan]]ese island of [[Okinawa Island|Okinawa]], which was its last intended stopover of its journey from [[New York City]], [[United States]], to [[Manila]], Philippines. The other stopovers included the American cities of [[Seattle]], [[Washington (state)|Washington]], and [[Anchorage, Alaska]], as well as Japan's capital [[Tokyo]].<ref name="GSM"/>

The aircraft readied itself for the last leg of its journey to Manila and took of from Okinawa-Naha Airport at 1:12&nbsp;am on July 14. Around two hours after [[takeoff]] at 3:15&nbsp;am, engine no. 2 underwent a sudden loss of power which was indicated to the plane's crew by a drop in [[mean effective pressure]] and [[Manifold vacuum|manifold pressure]]. The crew believed that the origin of the problem lay with [[carburetor icing]] and so took action to correct the issue. When no improvement was made to the situation of engine no. 2, the captain noticed the oil-out temperature of the engine rising. The crew thereafter attempted to [[Feathering (propeller)|feather]] the propeller of engine no. 2, but failed numerous times. Following the ongoing engine troubles, the flight was cleared to descend from [[Flight level|FL180]] {{cvt|18000|ft|0}} to FL100 {{cvt|10000|ft|0}}. The crew declared an emergency at 3:40&nbsp;am while descending to {{cvt|9000|ft|0}}. In an effort to halt engine no. 2 rotation, the crew attempted to activate the [[Shut down valve|firewall shutoff valve]] so the engine would be deprived of lubricant. As a result, the [[propeller]] separated from engine no. 2 and slashed a {{convert|15|in|adj=on}} hole in the plane's [[fuselage]]. More damage was reported by a continuous fire alarm, alerting the crew of a fire in engine no. 2 which had also spread to the [[wing]]. The crew informed Manila of their predicament at 4:20&nbsp;am before the plane undertook a rapid descent which was lessened in intensity when the plane reached an [[altitude]] of {{cvt|1000|ft|0}}. The crew had no choice but to [[Water landing|ditch]] the aircraft in the Pacific Ocean about {{cvt|124.7|km}} northeast of Manila and {{cvt|8|km}} northeast off [[Polillo Island]], [[Quezon]] Philippines. Upon hitting the water at 4:30&nbsp;am, the [[tail]] of the aircraft sheared off alongside the right wing and all engines.<ref name="TFE">{{cite web|title=Accident Details |url=http://www.planecrashinfo.com/1960/1960-34.htm|access-date=6 November 2022|website=planecrashinfo.com}}</ref>

The aircraft readied itself for the last leg of its journey to Manila and took off from Okinawa-Naha Airport at 1:12&nbsp;am on July 14. Around two hours after [[takeoff]] at 3:15&nbsp;am, engine no. 2 underwent a sudden loss of power which was indicated to the plane's crew by a drop in [[mean effective pressure]] and [[Manifold vacuum|manifold pressure]]. The crew believed that the origin of the problem lay with [[carburetor icing]] and so took action to correct the issue. When no improvement was made to the situation of engine no. 2, the captain noticed the oil-out temperature of the engine rising. The crew thereafter attempted to [[Feathering (propeller)|feather]] the propeller of engine no. 2, but failed numerous times. Following the ongoing engine troubles, the flight was cleared to descend from [[Flight level|FL180]] {{cvt|18000|ft|0}} to FL100 {{cvt|10000|ft|0}}. The crew declared an emergency at 3:40&nbsp;am while descending to {{cvt|9000|ft|0}}. In an effort to halt engine no. 2 rotation, the crew attempted to activate the [[Shut down valve|firewall shutoff valve]] so the engine would be deprived of lubricant. As a result, the [[propeller]] separated from engine no. 2 and slashed a {{convert|15|in|adj=on}} hole in the plane's [[fuselage]]. More damage was reported by a continuous fire alarm, alerting the crew of a fire in engine no. 2 which had also spread to the [[wing]]. The crew informed Manila of their predicament at 4:20&nbsp;am before the plane undertook a rapid descent which was lessened in intensity when the plane reached an [[altitude]] of {{cvt|1000|ft|0}}. The crew had no choice but to [[Water landing|ditch]] the aircraft in the Pacific Ocean about {{cvt|124.7|km}} northeast of Manila and {{cvt|8|km}} northeast off [[Polillo Island]], [[Quezon]] Philippines. Upon hitting the water at 4:30&nbsp;am, the [[tail]] of the aircraft sheared off alongside the right wing and all engines.<ref name="TFE">{{cite web|title=Accident Details |url=http://www.planecrashinfo.com/1960/1960-34.htm|access-date=6 November 2022|website=planecrashinfo.com}}</ref>

The right wing remained afloat for three hours following the crash, working as a makeshift [[liferaft]] for many survivors, while the remainder of the aircraft sank between 8 and 10 minutes after the ditching. The survivors were ultimately rescued by the [[United States Coast Guard|US Coast Guard]] and [[United States Navy|US Navy]] some four to six hours after the crash. Of the 58 passengers and crew, 57 survived with 44 suffering minor injuries. A single passenger died when the engine no. 2 propeller slashed through the plane's fuselage and struck her.<ref name="TRM">{{cite web|title=Northwest Airlines History Center |url=https://northwestairlineshistory.org/timeline-1960s/|access-date=6 November 2022|website=northwestairlineshistory.org |date=March 2020 }}</ref>

The right wing remained afloat for three hours following the crash, working as a makeshift [[liferaft]] for many survivors, while the remainder of the aircraft sank between 8 and 10 minutes after the ditching. The survivors were ultimately rescued by the [[United States Coast Guard|US Coast Guard]] and [[United States Navy|US Navy]] some four to six hours after the crash. Of the 58 passengers and crew, 57 survived with 44 suffering minor injuries. A single passenger died when the engine no. 2 propeller slashed through the plane's fuselage and struck her.<ref name="TRM">{{cite web|title=Northwest Airlines History Center |url=https://northwestairlineshistory.org/timeline-1960s/|access-date=6 November 2022|website=northwestairlineshistory.org |date=March 2020 }}</ref>