# September 11 \[12th?\], 1947 — Necker Island — Air Crew Encounters Light That Splits in Two

**URL:** https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616
**Category:** Blue Book Unknowns
**Created:** [September 10, 2026, 11:00pm UTC](https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616 "2026-09-10T23:00:33Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![jeffknox](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)
#### Post date: [September 10, 2026, 11:00pm UTC](https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616/1 "2026-09-10T23:00:33Z")

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September 11 [12th?], 1947 — Necker Island  
About 7:58 p.m. Capt. Stanley S. Griffin and 2d Officer Edward B. Polhemus are flying a Pan American airliner from Midway Atoll to Oahu, Hawaii. Just beyond Necker Island, they see an intense white light about 5 miles away off their starboard side. It approaches to about 1 mile away and the pilot switches to manual controls, whereupon the light suddenly veers away, splits into two parts, and turns reddish. The two lights appear to burn out about 30 miles ahead of them about 6 seconds later. [Eberhart] Date is confusing.

Card:

 ![09111947-NeckarIsland-SIGN-RecordCard](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/e/e53b0a0b127297d2d9f274199da7ab63e2b5e0f0.jpeg)

Incident 59 Summary:

 ![09111947-NeckarIsland-SIGN-Incident59-Summary](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/5/51c14539fe52f9418d890b37fdbb4dce7b3bb1b5.jpeg)

Report:

 ![09111947-NeckarIsland-SIGN-Report-p1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/c/cd53afef8a9506ca39db7b969ac9a3d911825ca0.webp)

 ![09111947-NeckarIsland-SIGN-Report-p2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/0/00652c59bcbe37da39aeec710ef9d067bf1de63b.jpeg)

Sources:  
Brad Sparks, Blue Books Unknowns Catalogue, Case 58, p. 28;

 ![09111947-NeckarIsland-Sparks-Case58-p28](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/e/ef0580c0295ba594c2d127b72ae2a78eb39cd835.png)

NICAP, “Air Crew Encounters Light That Splits in Two”;

> **[UFO Report](https://www.nicap.org/470913midway_dir.htm)**

[PURSUE release, pp. 127–128;]

 ![09111947-NeckarIsland-SIGN-Incident59-p1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/8/885d58486d5ceadb6bcf8e109dc4ddfcfc4c5cf8.webp)

 ![09111947-NeckarIsland-SIGN-Incident59-p2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/7/776cf46ea0213a6d6be3e5cdced3d05ee7f71a4a.webp)

[https://www.war.gov/medialink/ufo/release\_1/38\_143685\_box7\_incident\_summaries\_1-100.pdf](https://www.war.gov/medialink/ufo/release_1/38_143685_box7_incident_summaries_1-100.pdf)

[PURSUE release, pp. 168–169;]

 ![09111947-NeckarIsland-SIGN-Incident59-ALT-p1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/7/77f0a9f9dee04a1903c510db10c25cbb55929662.webp)

 ![09111947-NeckarIsland-SIGN-Incident59-ALT-p2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/4/4b8cb27c055ff21bcd0b8b6c0aee88cfe0dbf0be.jpeg)

[https://www.war.gov/medialink/ufo/061226/release\_03/documents/DOW-UAP-D087\_US-AirForce\_Analysis-of-Flying-Objects-in-the-US\_1-100.pdf](https://www.war.gov/medialink/ufo/061226/release_03/documents/DOW-UAP-D087_US-AirForce_Analysis-of-Flying-Objects-in-the-US_1-100.pdf)

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### Author: ![PulpDisclosure](https://avatars.discourse-cdn.com/v4/letter/p/7cd45c/32.png) [@PulpDisclosure](https://uapdiscovery.discourse.group/u/PulpDisclosure)
#### Post date: [September 18, 2026, 12:25am UTC](https://uapdiscovery.discourse.group/t/september-11-12th-1947-necker-island-air-crew-encounters-light-that-splits-in-two/616/2 "2026-09-18T00:25:30Z")

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