Solvable Problems

WATCH CONSTABULARY / ORBIT GUARD
SPACECRAFT INCIDENT REPORT

REPORT: TORA-42-0896
REPORT DATE: 7322 Yrnaes 11

INCIDENT DATE: 7322 Yrnaes 8
VESSEL CLASS: Tingesek-class ESV/courier
REGISTRATION: Free Loxix
OPERATOR: Private charter
REPORTED BY: Aste min Direthill, commander, Toralish Orbit Guard

REFERENCES: [see attached]

SUBJECT: Fuel Tank Rupture Leading To Interior Dissolution

EVENT:

Shortly after entry into Toralish system, contact was lost with the Tingesek-class ESV, Soreseg Ven. All efforts to regain contact with the vessel failed, and shortly thereafter observations by System Traffic Control showed an abnormal termination of maneuvering burn. The vessel was then declared not under command, and a patrol boat, CSS Captal’s Mercy, was vectored towards its last known position.

Upon reaching and boarding Soreseg Ven, the pressure hull was found open to space, with severe damage to the interior. On examination, virtually all organic or carbon-based material was found to be missing, and severe erosion was found on many metallic surfaces. All eighteen souls aboard were lost without trace.

Subsequently to the investigation, the hulk was ordered towed for disposal to the Kathar wreckyard as a hazard to navigation, awaiting owner clearance for disposal.

ACTION TAKEN:

Investigation of the spacecraft revealed the following:

  1. The above-mentioned damage to the interior of the pressure hull.
  2. Modifications had been made to expand and, concordantly, relocate the fuel and oxidizer tanks supplying the primary thrust motor.
  3. The primary fuel tank retained its position directly above the primary thrust motor, but had been extended 10% towards the bow.
  4. The primary oxidizer tank had been relocated forward accordingly, and had itself been extended 22% towards the bow. This required the combination of the tank head and the after pressure bulkhead into a single structure.
  5. The surviving fittings of the primary fuel and oxidizer tanks were found to be non-PMA.
  6. The tank heads of both the primary fuel and oxidizer tanks were found to be non-PMA.
  7. Stress fractures were found along the surviving pieces of the oxidizer tank head structure.

CONCLUSION:

Due to the timing of the failure, it is believed that the additional stress placed on the oxidizer tank head by the maneuvering burn initiated by Soreseg Ven after jumping into Toralish caused the stress fractures along the shared structure of the oxidizer tank head and after pressure bulkhead. With the oxidizer tank fully pressurized, immediate structural failure followed, allowing large volumes of the rapidly vaporizing oxidizer to penetrate the pressure hull.

Since the Tingesek-class ESV makes use of a chemical reaction drive powered by pentaborane and high-test hydrogen peroxide, it is believed that the crew and passengers of Soreseg Ven were immediately dissolved during the oxidizer inrush, as were the majority of the vulnerable fittings and other items within the pressure hull, a process which only ended when the rapid changes in internal temperature and pressure caused the pressure hull itself to fracture.

RECOMMENDATIONS:

  1. Non-manufacturer upgrades require added operator scrutiny.
  2. Foreign repair procedures require added operator scrutiny.
  3. Celestime architects considering the use of high-test peroxide should consider all other available options.

Notable Replies

  1. …I have a Tony Stark joke in here. Mostly involving why he doesn’t teach Boy Scout troops anymore (they get really weird when you burn down your third High School in the district) and it goes with the whole hydrogen peroxide joke. Ending with RDJ dong a bad German accent with the punchline “Lies un British propaganda! It only exploded two out of three times!”

  2. common bulkhead between the crew compartment and the oxidiser tank

    nope nope nope nope nopity nope

  3. If the designer and shipwrights were among the crew, then this is merely another case of {insert name of sophont who discovered non-Precursor-meddled ‘natural’ selection} Award winners.

    And if this is just a vacuum-headed maneuver by some polity barely able to hold the pen to sign the Accords, well, it’s a learning experience for them.

    But if someone in civilized space let this leave the shipyards, shouldn’t they be identified if possible?

    In the interest of the free marketplace, of course…

  4. Non-manufacturer upgrades

    With non-PMA parts, too. I mean, high-test peroxide is never a great life choice, but it’s not that bad until you start letting random hack shops install dodgy “upgrades”.

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