As reported
Other over Northern California (16귔 Ft Over Sierra Mountains), CA
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
6-7 flaming light objects with comet-like tails viewed by pilot of aircraft at 16귔 feet in dark over Sierra Mountains.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.